Table of Contents exif_imagetype -- Determine the type of an imageexif_read_data -- Reads the EXIF headers from JPEG or TIFF. This way you can read meta data generated by digital cameras.exif_thumbnail -- Retrieve the embedded thumbnail of a TIFF or JPEG imagegd_info -- Retrieve information about the currently installed GD librarygetimagesize -- Get the size of an imageimage_type_to_mime_type -- Get Mime-Type for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetypeimage2wbmp -- Output image to browser or fileimagealphablending -- Set the blending mode for an imageimageantialias --  Should antialias functions be used or not imagearc -- Draw a partial ellipseimagechar -- Draw a character horizontallyimagecharup -- Draw a character verticallyimagecolorallocate -- Allocate a color for an imageimagecolorallocatealpha -- Allocate a color for an imageimagecolorat -- Get the index of the color of a pixelimagecolorclosest -- Get the index of the closest color to the specified colorimagecolorclosestalpha -- Get the index of the closest color to the specified color + alphaimagecolorclosesthwb --  Get the index of the color which has the hue, white and blackness nearest to the given colorimagecolordeallocate -- De-allocate a color for an imageimagecolorexact -- Get the index of the specified colorimagecolorexactalpha -- Get the index of the specified color + alphaimagecolormatch --  Makes the colors of the palette version of an image more closely match the true color version imagecolorresolve --  Get the index of the specified color or its closest possible alternative imagecolorresolvealpha --  Get the index of the specified color + alpha or its closest possible alternative imagecolorset -- Set the color for the specified palette indeximagecolorsforindex -- Get the colors for an indeximagecolorstotal -- Find out the number of colors in an image's paletteimagecolortransparent -- Define a color as transparentimagecopy -- Copy part of an imageimagecopymerge -- Copy and merge part of an imageimagecopymergegray -- Copy and merge part of an image with gray scaleimagecopyresampled -- Copy and resize part of an image with resamplingimagecopyresized -- Copy and resize part of an imageimagecreate -- Create a new palette based imageimagecreatefromgd2 -- Create a new image from GD2 file or URLimagecreatefromgd2part -- Create a new image from a given part of GD2 file or URLimagecreatefromgd -- Create a new image from GD file or URLimagecreatefromgif -- Create a new image from file or URLimagecreatefromjpeg -- Create a new image from file or URLimagecreatefrompng -- Create a new image from file or URLimagecreatefromstring -- Create a new image from the image stream in the stringimagecreatefromwbmp -- Create a new image from file or URLimagecreatefromxbm -- Create a new image from file or URLimagecreatefromxpm -- Create a new image from file or URLimagecreatetruecolor -- Create a new true color imageimagedashedline -- Draw a dashed lineimagedestroy -- Destroy an imageimageellipse -- Draw an ellipseimagefill -- Flood fillimagefilledarc -- Draw a partial ellipse and fill itimagefilledellipse -- Draw a filled ellipseimagefilledpolygon -- Draw a filled polygonimagefilledrectangle -- Draw a filled rectangleimagefilltoborder -- Flood fill to specific colorimagefontheight -- Get font heightimagefontwidth -- Get font widthimageftbbox -- Give the bounding box of a text using fonts via freetype2imagefttext -- Write text to the image using fonts using FreeType 2imagegammacorrect -- Apply a gamma correction to a GD imageimagegd2 -- Output GD2 imageimagegd -- Output GD image to browser or fileimagegif -- Output image to browser or fileimageinterlace -- Enable or disable interlaceimageistruecolor -- Finds whether an image is a truecolor image.imagejpeg -- Output image to browser or fileimagelayereffect --  Set the alpha blending flag to use the bundled libgd layering effectsimageline -- Draw a lineimageloadfont -- Load a new fontimagepalettecopy -- Copy the palette from one image to anotherimagepng -- Output a PNG image to either the browser or a fileimagepolygon -- Draw a polygonimagepsbbox --  Give the bounding box of a text rectangle using PostScript Type1 fontsimagepscopyfont --  Make a copy of an already loaded font for further modificationimagepsencodefont -- Change the character encoding vector of a fontimagepsextendfont -- Extend or condense a fontimagepsfreefont -- Free memory used by a PostScript Type 1 fontimagepsloadfont -- Load a PostScript Type 1 font from fileimagepsslantfont -- Slant a fontimagepstext -- To draw a text string over an image using PostScript Type1 fontsimagerectangle -- Draw a rectangleimagerotate -- Rotate an image with a given angleimagesavealpha --  Set the flag to save full alpha channel information (as opposed to single-color transparency) when saving PNG images. imagesetbrush -- Set the brush image for line drawingimagesetpixel -- Set a single pixelimagesetstyle -- Set the style for line drawingimagesetthickness -- Set the thickness for line drawingimagesettile -- Set the tile image for fillingimagestring -- Draw a string horizontallyimagestringup -- Draw a string verticallyimagesx -- Get image widthimagesy -- Get image heightimagetruecolortopalette -- Convert a true color image to a palette imageimagettfbbox -- Give the bounding box of a text using TrueType fontsimagettftext -- Write text to the image using TrueType fontsimagetypes -- Return the image types supported by this PHP buildimagewbmp -- Output image to browser or fileiptcembed -- Embed binary IPTC data into a JPEG imageiptcparse --  Parse a binary IPTC http://www.iptc.org/ block into single tags.jpeg2wbmp -- Convert JPEG image file to WBMP image filepng2wbmp -- Convert PNG image file to WBMP image fileread_exif_data -- Alias of exif_read_data()