PHP中实现图片的锐化
$imginfo[2] : null);} //图像锐化 //$scr_im:图像资源句柄,$degree:锐化度数 function Sharp { $src_x = imagesx; $src_y = imagesy; //$dst_im = imagecreate; //imagecopy; $cnt = 0; for for { $src_clr1 = imagecolorsforindex; $src_clr2 = imagecolorsforindex; $r = intval; $g = intval; $b = intval; $r = min; $g = min; $b = min; //echo "r:$r, g:$g, b:$b"; if $dst_clr = Imagecolorallocate; $cnt++; if die; imagesetpixel; } return $dst_im; } $ImageFunctions = array; if (!empty) { set_time_limit; if die("指定文件不存在或不是有效的图片或不支持类型!"); if $ImageType = 0; if die("不支持的图片类型!"); $im1 = $ImageFunctions[$ImageType]; $im2 = $ImageFunctions[$ImageType]; //print_r; Sharp; header; imagepng; imagedestroy; imagedestroy; } ?>" size=32> 锐化度数: