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Showing results for tags 'jpg'.
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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($fileToCompress); } But I wind up with 100 copies of the original, each at 50 quality. I am open for ideas. -
Hi. I have a problem where when i try to display the uploaded JPEG file, the browser would only dispay the placeholder for an image . I think the problem is within the 3rd IF statement. Please help me thanks. <?php if($_SERVER['REQUEST_METHOD'] == 'POST') { if(isset($_FILES['photo']) && is_uploaded_file($_FILES['photo']['tmp_name']) && $_FILES['photo']['error']==UPLOAD_ERR_OK) { if($_FILES['photo']['type']=='image/jpeg') { echo 'asdsad'; $tmp_img = $_FILES['photo']['tmp_name']; $image = imagecreatefromjpeg($tmp_img); header('Content-Type: image/jpeg'); imagejpeg($image, NULL, 90); imagedestroy($image); } else { echo "Uploaded file was not a JPG image."; } } else { echo "No photo uploaded!"; }} else { echo " <form action='test.php' method='post' enctype='multipart/form-data'> <label for='photo'>User Photo:</label> <input type='file' name='photo' /> <input type='submit' value='Upload a Photo' /> </form> ";} ?>
