Add ability to generate "Rounded" and "Grayscale" images

Converting to Rounded function imageRoundedCopyResampled(& $dstimg , & $srcimg , $dstx , $dsty , $srcx , $srcy , $dstw , $dsth , $srcw , $srch , $radius ) { # Resize the Source Image $srcResized = imagecreatetruecolor( $dstw , $dsth ); imagecopyresampled( $srcResized , $srcimg , 0, 0, $srcx , $srcy , $dstw , $dsth , $srcw , $srch ); # Copy the Body without corners imagecopy( $dstimg , $srcResized , $dstx + $radius , $dsty , $radius , 0, $dstw - ( $radius * 2), $dsth ); imagecopy( $dstimg , $srcResized , $dstx , $dsty + $radius , 0, $radius , $dstw , $dsth - ( $radius * 2)); # Create a list of iterations; array ( array (X1, X2, CenterX, CenterY), ...) # Iterations in order are: Top-Left, Top-Right, Bottom-Left, Bottom-Right $iterations = array ( array (0, 0, $radius , $radius ), array ( $dstw - $radius , 0, $dstw - $radius , $radius ), array (0, $dsth - $radius , $radius , $dsth - $radius ), array ( $dstw - $radius , $dsth - $radius , $dstw - $radius , $dsth - $radius ) ); # Loop through each corner 'iteration' foreach ( $iterations as $iteration ) { list ( $x1 , $y1 , $cx , $cy ) = $iteration ; for ( $y = $y1 ; $y <= $y1 + $radius ; $y ++ ) { for ( $x = $x1 ; $x <= $x1 + $radius ; $x ++ ) { # If length (X,Y)->(CX,CY) is less then radius draw the point $length = sqrt(pow(( $cx - $x ), 2) + pow(( $cy - $y ), 2)); if ( $length < $radius ) { imagecopy( $dstimg , $srcResized , $x + $dstx , $y + $dsty , $x , $y , 1, 1); } } } } } could be a better solution, which does this: draws white square based on source image dimensions cuts circle from the midle places original image under prepared image so only image part, that fits the hole is visible This approach will use standard GD function, like "imagefilledellipse" and so on. Converting to Grayscale $source_file = "test_image.jpg"; $im = ImageCreateFromJpeg($source_file); $imgw = imagesx( $im ); $imgh = imagesy( $im ); for ( $i = 0; $i < $imgw ; $i ++ ) { for ( $j = 0; $j < $imgh ; $j ++ ) { // get the rgb value for current pixel $rgb = ImageColorAt( $im , $i , $j ); // extract each value for r, g, b $rr = ( $rgb >> 16) & 0xFF; $gg = ( $rgb >> 8) & 0xFF; $bb = $rgb & 0xFF; // get the Value from the RGB value $g = round(( $rr + $gg + $bb ) / 3); // grayscale values have r=g=b=g $val = imagecolorallocate( $im , $g , $g , $g ); // set the gray value imagesetpixel( $im , $i , $j , $val ); } } header( 'Content-type: image/jpeg' ); imagejpeg( $im );