Predefined Constants

The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.

imagick::COLOR_BLACK (int): Black color
imagick::COLOR_BLUE (int): Blue color
imagick::COLOR_CYAN (int): Cyan color
imagick::COLOR_GREEN (int): Green color
imagick::COLOR_RED (int): Red color
imagick::COLOR_YELLOW (int): Yellow color
imagick::COLOR_MAGENTA (int): Magenta color
imagick::COLOR_OPACITY (int): Color's opacity
imagick::COLOR_ALPHA (int): Color's alpha
imagick::COLOR_FUZZ (int): Color's fuzz

imagick::DISPOSE_UNRECOGNIZED (int): Unrecognized dispose type
imagick::DISPOSE_UNDEFINED (int): Undefined dispose type
imagick::DISPOSE_NONE (int): No dispose type defined
imagick::DISPOSE_BACKGROUND (int): Dispose background
imagick::DISPOSE_PREVIOUS (int): Dispose previous

imagick::COMPOSITE_DEFAULT (int): The default composite operator
imagick::COMPOSITE_UNDEFINED (int): Undefined composite operator
imagick::COMPOSITE_NO (int): No composite operator defined
imagick::COMPOSITE_ADD (int): The result of image + image
imagick::COMPOSITE_ATOP (int): The result is the same shape as image, with composite image obscuring image where the image shapes overlap
imagick::COMPOSITE_BLEND (int): Blends the image
imagick::COMPOSITE_BUMPMAP (int): The same as COMPOSITE_MULTIPLY, except the source is converted to grayscale first.
imagick::COMPOSITE_CLEAR (int): Makes the target image transparent
imagick::COMPOSITE_COLORBURN (int): Darkens the destination image to reflect the source image
imagick::COMPOSITE_COLORDODGE (int): Brightens the destination image to reflect the source image
imagick::COMPOSITE_COLORIZE (int): Colorizes the target image using the composite image
imagick::COMPOSITE_COPYBLACK (int): Copies black from the source to target
imagick::COMPOSITE_COPYBLUE (int): Copies blue from the source to target
imagick::COMPOSITE_COPY (int): Copies the source image on the target image
imagick::COMPOSITE_COPYCYAN (int): Copies cyan from the source to target
imagick::COMPOSITE_COPYGREEN (int): Copies green from the source to target
imagick::COMPOSITE_COPYMAGENTA (int): Copies magenta from the source to target
imagick::COMPOSITE_COPYOPACITY (int): Copies opacity from the source to target
imagick::COMPOSITE_COPYRED (int): Copies red from the source to target
imagick::COMPOSITE_COPYYELLOW (int): Copies yellow from the source to target
imagick::COMPOSITE_DARKEN (int): Darkens the target image
imagick::COMPOSITE_DSTATOP (int): The part of the destination lying inside of the source is composited over the source and replaces the destination
imagick::COMPOSITE_DST (int): The target is left untouched
imagick::COMPOSITE_DSTIN (int): The parts inside the source replace the target
imagick::COMPOSITE_DSTOUT (int): The parts outside the source replace the target
imagick::COMPOSITE_DSTOVER (int): Target replaces the source
imagick::COMPOSITE_DIFFERENCE (int): Subtracts the darker of the two constituent colors from the lighter
imagick::COMPOSITE_DISPLACE (int): Shifts target image pixels as defined by the source
imagick::COMPOSITE_DISSOLVE (int): Dissolves the source in to the target
imagick::COMPOSITE_EXCLUSION (int): Produces an effect similar to that of imagick::COMPOSITE_DIFFERENCE, but appears as lower contrast
imagick::COMPOSITE_HARDLIGHT (int): Multiplies or screens the colors, dependent on the source color value
imagick::COMPOSITE_HUE (int): Modifies the hue of the target as defined by source
imagick::COMPOSITE_IN (int): Composites source into the target
imagick::COMPOSITE_LIGHTEN (int): Lightens the target as defined by source
imagick::COMPOSITE_LUMINIZE (int): Luminizes the target as defined by source
imagick::COMPOSITE_MINUS (int): Subtracts the source from the target
imagick::COMPOSITE_MODULATE (int): Modulates the target brightness, saturation and hue as defined by source
imagick::COMPOSITE_MULTIPLY (int): Multiplies the target to the source
imagick::COMPOSITE_OUT (int): Composites outer parts of the source on the target
imagick::COMPOSITE_OVER (int): Composites source over the target
imagick::COMPOSITE_OVERLAY (int): Overlays the source on the target
imagick::COMPOSITE_PLUS (int): Adds the source to the target
imagick::COMPOSITE_REPLACE (int): Replaces the target with the source
imagick::COMPOSITE_SATURATE (int): Saturates the target as defined by the source
imagick::COMPOSITE_SCREEN (int): The source and destination are complemented and then multiplied and then replace the destination
imagick::COMPOSITE_SOFTLIGHT (int): Darkens or lightens the colors, dependent on the source
imagick::COMPOSITE_SRCATOP (int): The part of the source lying inside of the destination is composited onto the destination
imagick::COMPOSITE_SRC (int): The source is copied to the destination
imagick::COMPOSITE_SRCIN (int): The part of the source lying inside of the destination replaces the destination
imagick::COMPOSITE_SRCOUT (int): The part of the source lying outside of the destination replaces the destination
imagick::COMPOSITE_SRCOVER (int): The source replaces the destination
imagick::COMPOSITE_SUBTRACT (int): Subtract the colors in the source image from the destination image
imagick::COMPOSITE_THRESHOLD (int): The source is composited on the target as defined by source threshold
imagick::COMPOSITE_XOR (int): The part of the source that lies outside of the destination is combined with the part of the destination that lies outside of the source

imagick::MONTAGEMODE_FRAME (int)
imagick::MONTAGEMODE_UNFRAME (int)
imagick::MONTAGEMODE_CONCATENATE (int)

imagick::STYLE_NORMAL (int)
imagick::STYLE_ITALIC (int)
imagick::STYLE_OBLIQUE (int)
imagick::STYLE_ANY (int)

imagick::FILTER_UNDEFINED (int)
imagick::FILTER_POINT (int)
imagick::FILTER_BOX (int)
imagick::FILTER_TRIANGLE (int)
imagick::FILTER_HERMITE (int)
imagick::FILTER_HANNING (int)
imagick::FILTER_HAMMING (int)
imagick::FILTER_BLACKMAN (int)
imagick::FILTER_GAUSSIAN (int)
imagick::FILTER_QUADRATIC (int)
imagick::FILTER_CUBIC (int)
imagick::FILTER_CATROM (int)
imagick::FILTER_MITCHELL (int)
imagick::FILTER_LANCZOS (int)
imagick::FILTER_BESSEL (int)
imagick::FILTER_SINC (int)

imagick::IMGTYPE_UNDEFINED (int)
imagick::IMGTYPE_BILEVEL (int)
imagick::IMGTYPE_GRAYSCALE (int)
imagick::IMGTYPE_GRAYSCALEMATTE (int)
imagick::IMGTYPE_PALETTE (int)
imagick::IMGTYPE_PALETTEMATTE (int)
imagick::IMGTYPE_TRUECOLOR (int)
imagick::IMGTYPE_TRUECOLORMATTE (int)
imagick::IMGTYPE_COLORSEPARATION (int)
imagick::IMGTYPE_COLORSEPARATIONMATTE (int)
imagick::IMGTYPE_OPTIMIZE (int)

imagick::RESOLUTION_UNDEFINED (int)
imagick::RESOLUTION_PIXELSPERINCH (int)
imagick::RESOLUTION_PIXELSPERCENTIMETER (int)

imagick::COMPRESSION_UNDEFINED (int)
imagick::COMPRESSION_NO (int)
imagick::COMPRESSION_BZIP (int)
imagick::COMPRESSION_FAX (int)
imagick::COMPRESSION_GROUP4 (int)
imagick::COMPRESSION_JPEG (int)
imagick::COMPRESSION_JPEG2000 (int)
imagick::COMPRESSION_LOSSLESSJPEG (int)
imagick::COMPRESSION_LZW (int)
imagick::COMPRESSION_RLE (int)
imagick::COMPRESSION_ZIP (int)
imagick::COMPRESSION_DXT1 (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.0 or higher.
imagick::COMPRESSION_DXT3 (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.0 or higher.
imagick::COMPRESSION_DXT5 (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.0 or higher.

imagick::PAINT_POINT (int)
imagick::PAINT_REPLACE (int)
imagick::PAINT_FLOODFILL (int)
imagick::PAINT_FILLTOBORDER (int)
imagick::PAINT_RESET (int)

imagick::GRAVITY_NORTHWEST (int)
imagick::GRAVITY_NORTH (int)
imagick::GRAVITY_NORTHEAST (int)
imagick::GRAVITY_WEST (int)
imagick::GRAVITY_CENTER (int)
imagick::GRAVITY_EAST (int)
imagick::GRAVITY_SOUTHWEST (int)
imagick::GRAVITY_SOUTH (int)
imagick::GRAVITY_SOUTHEAST (int)

imagick::STRETCH_NORMAL (int)
imagick::STRETCH_ULTRACONDENSED (int)
imagick::STRETCH_CONDENSED (int)
imagick::STRETCH_SEMICONDENSED (int)
imagick::STRETCH_SEMIEXPANDED (int)
imagick::STRETCH_EXPANDED (int)
imagick::STRETCH_EXTRAEXPANDED (int)
imagick::STRETCH_ULTRAEXPANDED (int)
imagick::STRETCH_ANY (int)

imagick::ALIGN_UNDEFINED (int)
imagick::ALIGN_LEFT (int)
imagick::ALIGN_CENTER (int)
imagick::ALIGN_RIGHT (int)

imagick::DECORATION_NO (int)
imagick::DECORATION_UNDERLINE (int)
imagick::DECORATION_OVERLINE (int)
imagick::DECORATION_LINETROUGH (int)

imagick::NOISE_UNIFORM (int)
imagick::NOISE_GAUSSIAN (int)
imagick::NOISE_MULTIPLICATIVEGAUSSIAN (int)
imagick::NOISE_IMPULSE (int)
imagick::NOISE_LAPLACIAN (int)
imagick::NOISE_POISSON (int)
imagick::NOISE_RANDOM (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.

imagick::CHANNEL_UNDEFINED (int)
imagick::CHANNEL_RED (int)
imagick::CHANNEL_GRAY (int)
imagick::CHANNEL_CYAN (int)
imagick::CHANNEL_GREEN (int)
imagick::CHANNEL_MAGENTA (int)
imagick::CHANNEL_BLUE (int)
imagick::CHANNEL_YELLOW (int)
imagick::CHANNEL_ALPHA (int)
imagick::CHANNEL_OPACITY (int)
imagick::CHANNEL_MATTE (int)
imagick::CHANNEL_BLACK (int)
imagick::CHANNEL_INDEX (int)
imagick::CHANNEL_ALL (int)
imagick::CHANNEL_DEFAULT (int)

imagick::METRIC_UNDEFINED (int)
imagick::METRIC_MEANABSOLUTEERROR (int)
imagick::METRIC_MEANSQUAREERROR (int)
imagick::METRIC_PEAKABSOLUTEERROR (int)
imagick::METRIC_PEAKSIGNALTONOISERATIO (int)
imagick::METRIC_ROOTMEANSQUAREDERROR (int)

imagick::PIXEL_CHAR (int)
imagick::PIXEL_DOUBLE (int)
imagick::PIXEL_FLOAT (int)
imagick::PIXEL_INTEGER (int): Only available for ImageMagick < 7.
imagick::PIXEL_LONG (int)
imagick::PIXEL_QUANTUM (int)
imagick::PIXEL_SHORT (int)

imagick::EVALUATE_UNDEFINED (int)
imagick::EVALUATE_ADD (int)
imagick::EVALUATE_AND (int)
imagick::EVALUATE_DIVIDE (int)
imagick::EVALUATE_LEFTSHIFT (int)
imagick::EVALUATE_MAX (int)
imagick::EVALUATE_MIN (int)
imagick::EVALUATE_MULTIPLY (int)
imagick::EVALUATE_OR (int)
imagick::EVALUATE_RIGHTSHIFT (int)
imagick::EVALUATE_SET (int)
imagick::EVALUATE_SUBTRACT (int)
imagick::EVALUATE_XOR (int)
imagick::EVALUATE_POW (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_LOG (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_THRESHOLD (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_THRESHOLDBLACK (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_THRESHOLDWHITE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_GAUSSIANNOISE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_IMPULSENOISE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_LAPLACIANNOISE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_MULTIPLICATIVENOISE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_POISSONNOISE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_UNIFORMNOISE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_COSINE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_SINE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.
imagick::EVALUATE_ADDMODULUS (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.4 or higher.

imagick::COLORSPACE_UNDEFINED (int)
imagick::COLORSPACE_RGB (int)
imagick::COLORSPACE_GRAY (int)
imagick::COLORSPACE_TRANSPARENT (int)
imagick::COLORSPACE_OHTA (int)
imagick::COLORSPACE_LAB (int)
imagick::COLORSPACE_XYZ (int)
imagick::COLORSPACE_YCBCR (int)
imagick::COLORSPACE_YCC (int)
imagick::COLORSPACE_YIQ (int)
imagick::COLORSPACE_YPBPR (int)
imagick::COLORSPACE_YUV (int)
imagick::COLORSPACE_CMYK (int)
imagick::COLORSPACE_SRGB (int)
imagick::COLORSPACE_HSB (int)
imagick::COLORSPACE_HSL (int)
imagick::COLORSPACE_HWB (int)
imagick::COLORSPACE_REC601LUMA (int)
imagick::COLORSPACE_REC709LUMA (int)
imagick::COLORSPACE_LOG (int)
imagick::COLORSPACE_CMY (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.

imagick::VIRTUALPIXELMETHOD_UNDEFINED (int)
imagick::VIRTUALPIXELMETHOD_BACKGROUND (int)
imagick::VIRTUALPIXELMETHOD_CONSTANT (int)
imagick::VIRTUALPIXELMETHOD_EDGE (int)
imagick::VIRTUALPIXELMETHOD_MIRROR (int)
imagick::VIRTUALPIXELMETHOD_TILE (int)
imagick::VIRTUALPIXELMETHOD_TRANSPARENT (int)
imagick::VIRTUALPIXELMETHOD_MASK (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
imagick::VIRTUALPIXELMETHOD_BLACK (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
imagick::VIRTUALPIXELMETHOD_GRAY (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
imagick::VIRTUALPIXELMETHOD_WHITE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.2 or higher.
imagick::VIRTUALPIXELMETHOD_HORIZONTALTILE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.3 or higher.
imagick::VIRTUALPIXELMETHOD_VERTICALTILE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.3 or higher.

imagick::PREVIEW_UNDEFINED (int)
imagick::PREVIEW_ROTATE (int)
imagick::PREVIEW_SHEAR (int)
imagick::PREVIEW_ROLL (int)
imagick::PREVIEW_HUE (int)
imagick::PREVIEW_SATURATION (int)
imagick::PREVIEW_BRIGHTNESS (int)
imagick::PREVIEW_GAMMA (int)
imagick::PREVIEW_SPIFF (int)
imagick::PREVIEW_DULL (int)
imagick::PREVIEW_GRAYSCALE (int)
imagick::PREVIEW_QUANTIZE (int)
imagick::PREVIEW_DESPECKLE (int)
imagick::PREVIEW_REDUCENOISE (int)
imagick::PREVIEW_ADDNOISE (int)
imagick::PREVIEW_SHARPEN (int)
imagick::PREVIEW_BLUR (int)
imagick::PREVIEW_THRESHOLD (int)
imagick::PREVIEW_EDGEDETECT (int)
imagick::PREVIEW_SPREAD (int)
imagick::PREVIEW_SOLARIZE (int)
imagick::PREVIEW_SHADE (int)
imagick::PREVIEW_RAISE (int)
imagick::PREVIEW_SEGMENT (int)
imagick::PREVIEW_SWIRL (int)
imagick::PREVIEW_IMPLODE (int)
imagick::PREVIEW_WAVE (int)
imagick::PREVIEW_OILPAINT (int)
imagick::PREVIEW_CHARCOALDRAWING (int)
imagick::PREVIEW_JPEG (int)

imagick::RENDERINGINTENT_UNDEFINED (int)
imagick::RENDERINGINTENT_SATURATION (int)
imagick::RENDERINGINTENT_PERCEPTUAL (int)
imagick::RENDERINGINTENT_ABSOLUTE (int)
imagick::RENDERINGINTENT_RELATIVE (int)

imagick::INTERLACE_UNDEFINED (int)
imagick::INTERLACE_NO (int)
imagick::INTERLACE_LINE (int)
imagick::INTERLACE_PLANE (int)
imagick::INTERLACE_PARTITION (int)
imagick::INTERLACE_GIF (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.4 or higher.
imagick::INTERLACE_JPEG (int)
imagick::INTERLACE_PNG (int)

imagick::FILLRULE_UNDEFINED (int)
imagick::FILLRULE_EVENODD (int)
imagick::FILLRULE_NONZERO (int)

imagick::PATHUNITS_UNDEFINED (int)
imagick::PATHUNITS_USERSPACE (int)
imagick::PATHUNITS_USERSPACEONUSE (int)
imagick::PATHUNITS_OBJECTBOUNDINGBOX (int)

imagick::LINECAP_UNDEFINED (int)
imagick::LINECAP_BUTT (int)
imagick::LINECAP_ROUND (int)
imagick::LINECAP_SQUARE (int)

imagick::LINEJOIN_UNDEFINED (int)
imagick::LINEJOIN_MITER (int)
imagick::LINEJOIN_ROUND (int)
imagick::LINEJOIN_BEVEL (int)

imagick::RESOURCETYPE_UNDEFINED (int)
imagick::RESOURCETYPE_AREA (int): Set the maximum width * height of an image that can reside in the pixel cache memory.
imagick::RESOURCETYPE_DISK (int): Set maximum amount of disk space in bytes permitted for use by the pixel cache.
imagick::RESOURCETYPE_FILE (int): Set maximum number of open pixel cache files.
imagick::RESOURCETYPE_MAP (int): Set maximum amount of memory map in bytes to allocate for the pixel cache.
imagick::RESOURCETYPE_MEMORY (int): Set maximum amount of memory in bytes to allocate for the pixel cache from the heap.
imagick::RESOURCETYPE_THREAD (int): Set maximum parallel threads. This constant is available if Imagick has been compiled against ImageMagick version 6.7.8 or higher.

imagick::LAYERMETHOD_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_COALESCE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_COMPAREANY (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_COMPARECLEAR (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_COMPAREOVERLAY (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_DISPOSE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_OPTIMIZE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_OPTIMIZEPLUS (int): This constant is available if Imagick has been compiled against ImageMagick version 6.2.9 or higher.
imagick::LAYERMETHOD_OPTIMIZEIMAGE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::LAYERMETHOD_OPTIMIZETRANS (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::LAYERMETHOD_REMOVEDUPS (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::LAYERMETHOD_REMOVEZERO (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::LAYERMETHOD_COMPOSITE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::LAYERMETHOD_MERGE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.7 or higher.
imagick::LAYERMETHOD_FLATTEN (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.7 or higher.
imagick::LAYERMETHOD_MOSAIC (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.7 or higher.

imagick::ORIENTATION_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_TOPLEFT (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_TOPRIGHT (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_BOTTOMRIGHT (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_BOTTOMLEFT (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_LEFTTOP (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_RIGHTTOP (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_RIGHTBOTTOM (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.
imagick::ORIENTATION_LEFTBOTTOM (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.0 or higher.

imagick::DISTORTION_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_AFFINE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_AFFINEPROJECTION (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_ARC (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_BILINEAR (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_PERSPECTIVE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_PERSPECTIVEPROJECTION (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_SCALEROTATETRANSLATE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.6 or higher.
imagick::DISTORTION_POLYNOMIAL (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DISTORTION_POLAR (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DISTORTION_DEPOLAR (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DISTORTION_BARREL (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DISTORTION_BARRELINVERSE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DISTORTION_SHEPARDS (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DISTORTION_SENTINEL (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.

imagick::ALPHACHANNEL_ACTIVATE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
imagick::ALPHACHANNEL_DEACTIVATE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
imagick::ALPHACHANNEL_RESET (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
imagick::ALPHACHANNEL_SET (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.8 or higher.
imagick::ALPHACHANNEL_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::ALPHACHANNEL_COPY (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::ALPHACHANNEL_EXTRACT (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::ALPHACHANNEL_OPAQUE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::ALPHACHANNEL_SHAPE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::ALPHACHANNEL_TRANSPARENT (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::ALPHACHANNEL_BACKGROUND (int): This constant is available if Imagick has been compiled against ImageMagick version 6.5.3 or higher.
imagick::ALPHACHANNEL_REMOVE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.7.8 or higher.
imagick::ALPHACHANNEL_ASSOCIATE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.9.0 or higher.
imagick::ALPHACHANNEL_DISSOCIATE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.9.0 or higher.
imagick::ALPHACHANNEL_ON (int): This constant is available if Imagick has been compiled against ImageMagick version 7.0.0 or higher.
imagick::ALPHACHANNEL_OFF (int): This constant is available if Imagick has been compiled against ImageMagick version 7.0.0 or higher.
imagick::ALPHACHANNEL_DISCRETE (int): This constant is available if Imagick has been compiled against ImageMagick version 7.0.0 or higher.

imagick::SPARSECOLORMETHOD_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::SPARSECOLORMETHOD_BARYCENTRIC (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::SPARSECOLORMETHOD_BILINEAR (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::SPARSECOLORMETHOD_POLYNOMIAL (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::SPARSECOLORMETHOD_SPEPARDS (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::SPARSECOLORMETHOD_VORONOI (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.

imagick::FUNCTION_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.9 or higher.
imagick::FUNCTION_POLYNOMIAL (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.9 or higher.
imagick::FUNCTION_SINUSOID (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.9 or higher.

imagick::INTERPOLATE_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_AVERAGE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_BICUBIC (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_BILINEAR (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_FILTER (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_INTEGER (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_MESH (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_NEARESTNEIGHBOR (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.2 or higher.
imagick::INTERPOLATE_SPLINE (int): This constant is available if Imagick has been compiled against ImageMagick version 6.3.4 or higher.

imagick::DITHERMETHOD_UNDEFINED (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DITHERMETHOD_NO (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DITHERMETHOD_RIEMERSMA (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.
imagick::DITHERMETHOD_FLOYDSTEINBERG (int): This constant is available if Imagick has been compiled against ImageMagick version 6.4.6 or higher.