I'm trying to write a script to demenostrate JPG lossy compression. The idea is to start with an image called copy-0000.jpg that is at 100% quality then save it 100 times at 50 quality renaming the copies as it goes. So each copy will be half the quality of the previous.
$j = 0;
for ($i = 0; $i < 100; $i ++) {
$j ++;
$fileToCompress = imagecreatefromjpeg('copy-' . sprintf('%04d',$i) . '.jpg');
imagejpeg($fileToCompress, 'copy-' . sprintf('%04d',$j) . '.jpg', 50);
imagedestroy($fileToCompress);
}
But I wind up with 100 copies of the original, each at 50 quality.
I am open for ideas.
I'm trying to write a script to demenostrate JPG lossy compression. The idea is to start with an image called copy-0000.jpg that is at 100% quality then save it 100 times at 50 quality renaming the copies as it goes. So each copy will be half the quality of the previous. $j = 0; for ($i = 0; $i < 100; $i ++) { $j ++; $fileToCompress = imagecreatefromjpeg('copy-' . sprintf('%04d',$i) . '.jpg'); imagejpeg($fileToCompress, 'copy-' . sprintf('%04d',$j) . '.jpg', 50); imagedestroy($fileToCompress); } But I wind up with 100 copies of the original, each at 50 quality. I am open for ideas.