* gd_info — Retrieve information about the currently installed GD library * getimagesize — Get the size of an image * image_type_to_extension — Get file extension for image type * image_type_to_mime_type — Get Mime-Type for image-type returned by getimagesize, exif_read_data, exif_thumbnail, exif_imagetype * image2wbmp — Output image to browser or file * imagealphablending — Set the blending mode for an image * imageantialias — Should antialias functions be used or not * imagearc — Draws an arc * imagechar — Draw a character horizontally * imagecharup — Draw a character vertically * imagecolorallocate — Allocate a color for an image * imagecolorallocatealpha — Allocate a color for an image * imagecolorat — Get the index of the color of a pixel * imagecolorclosest — Get the index of the closest color to the specified color * imagecolorclosestalpha — Get the index of the closest color to the specified color + alpha * imagecolorclosesthwb — Get the index of the color which has the hue, white and blackness * imagecolordeallocate — De-allocate a color for an image * imagecolorexact — Get the index of the specified color * imagecolorexactalpha — Get the index of the specified color + alpha * imagecolormatch — 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 index * imagecolorsforindex — Get the colors for an index * imagecolorstotal — Find out the number of colors in an image's palette * imagecolortransparent — Define a color as transparent * imageconvolution — Apply a 3x3 convolution matrix, using coefficient and offset * imagecopy — Copy part of an image * imagecopymerge — Copy and merge part of an image * imagecopymergegray — Copy and merge part of an image with gray scale * imagecopyresampled — Copy and resize part of an image with resampling * imagecopyresized — Copy and resize part of an image * imagecreate — Create a new palette based image * imagecreatefromgd2 — Create a new image from GD2 file or URL * imagecreatefromgd2part — Create a new image from a given part of GD2 file or URL * imagecreatefromgd — Create a new image from GD file or URL * imagecreatefromgif — Create a new image from file or URL * imagecreatefromjpeg — Create a new image from file or URL * imagecreatefrompng — Create a new image from file or URL * imagecreatefromstring — Create a new image from the image stream in the string * imagecreatefromwbmp — Create a new image from file or URL * imagecreatefromxbm — Create a new image from file or URL * imagecreatefromxpm — Create a new image from file or URL * imagecreatetruecolor — Create a new true color image * imagedashedline — Draw a dashed line * imagedestroy — Destroy an image * imageellipse — Draw an ellipse * imagefill — Flood fill * imagefilledarc — Draw a partial ellipse and fill it * imagefilledellipse — Draw a filled ellipse * imagefilledpolygon — Draw a filled polygon * imagefilledrectangle — Draw a filled rectangle * imagefilltoborder — Flood fill to specific color * imagefilter — Applies a filter to an image * imagefontheight — Get font height * imagefontwidth — Get font width * imageftbbox — Give the bounding box of a text using fonts via freetype2 * imagefttext — Write text to the image using fonts using FreeType 2 * imagegammacorrect — Apply a gamma correction to a GD image * imagegd2 — Output GD2 image to browser or file * imagegd — Output GD image to browser or file * imagegif — Output image to browser or file * imagegrabscreen — Captures the whole screen * imagegrabwindow — Captures a window * imageinterlace — Enable or disable interlace * imageistruecolor — Finds whether an image is a truecolor image * imagejpeg — Output image to browser or file * imagelayereffect — Set the alpha blending flag to use the bundled libgd layering effects * imageline — Draw a line * imageloadfont — Load a new font * imagepalettecopy — Copy the palette from one image to another * imagepng — Output a PNG image to either the browser or a file * imagepolygon — Draws a polygon * imagepsbbox — Give the bounding box of a text rectangle using PostScript Type1 fonts * imagepsencodefont — Change the character encoding vector of a font * imagepsextendfont — Extend or condense a font * imagepsfreefont — Free memory used by a PostScript Type 1 font * imagepsloadfont — Load a PostScript Type 1 font from file * imagepsslantfont — Slant a font * imagepstext — Draws a text over an image using PostScript Type1 fonts * imagerectangle — Draw a rectangle * imagerotate — Rotate an image with a given angle * imagesavealpha — 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 drawing * imagesetpixel — Set a single pixel * imagesetstyle — Set the style for line drawing * imagesetthickness — Set the thickness for line drawing * imagesettile — Set the tile image for filling * imagestring — Draw a string horizontally * imagestringup — Draw a string vertically * imagesx — Get image width * imagesy — Get image height * imagetruecolortopalette — Convert a true color image to a palette image * imagettfbbox — Give the bounding box of a text using TrueType fonts * imagettftext — Write text to the image using TrueType fonts * imagetypes — Return the image types supported by this PHP build * imagewbmp — Output image to browser or file * imagexbm — Output XBM image to browser or file * iptcembed — Embed binary IPTC data into a JPEG image * iptcparse — Parse a binary IPTC block into single tags. * jpeg2wbmp — Convert JPEG image file to WBMP image file * png2wbmp — Convert PNG image file to WBMP image file