so my following code is working like if i upload image it will resize image to 720x450 and then watermark it. but i wish not to modify the width and height and put the watermark at the bottom right of an image of any size
if someone could help me out here?
$image_path = "../images/watermark.png";
function watermark_image($oldimage_name, $new_image_name){
global $image_path;
list($owidth,$oheight) = getimagesize($oldimage_name);
$width = 720; $height = 450;
$im = imagecreatetruecolor($width, $height);
$img_src = imagecreatefromjpeg($oldimage_name);
imagecopyresampled($im, $img_src, 0, 0, 0, 0, $width, $height, $owidth, $oheight);
$watermark = imagecreatefrompng($image_path);
list($w_width, $w_height) = getimagesize($image_path);
$pos_x = $width - $w_width;
$pos_y = $height - $w_height;
imagecopy($im, $watermark, $pos_x, $pos_y, 0, 0, $w_width, $w_height);
imagejpeg($im, $new_image_name, 90);
imagedestroy($im);
unlink($oldimage_name);
return true;
}
appreciate your help and time.
You are providing manual height and width, Just assign the original height ans width of image
$image_path = "../images/watermark.png";
function watermark_image($oldimage_name, $new_image_name){
global $image_path;
list($owidth,$oheight) = getimagesize($oldimage_name);
$width = $owidth; $height = $oheight;
$im = imagecreatetruecolor($width, $height);
$img_src = imagecreatefromjpeg($oldimage_name);
imagecopyresampled($im, $img_src, 0, 0, 0, 0, $width, $height, $owidth, $oheight);
$watermark = imagecreatefrompng($image_path);
list($w_width, $w_height) = getimagesize($image_path);
$pos_x = $width - $w_width;
$pos_y = $height - $w_height;
imagecopy($im, $watermark, $pos_x, $pos_y, 0, 0, $w_width, $w_height);
imagejpeg($im, $new_image_name, 90);
imagedestroy($im);
unlink($oldimage_name);
return true;
}
Try this will work as you expected.
for more info check here http://php.net/manual/en/image.examples-watermark.php
Related
I am adding a transparant logo as watermark over an image using PHP. However, in the result the logo has poor quality (the image that is under it is high quality, so it's just the watermark). This is the code I use (its about the last 3 lines):
header("Content-Type: image/png");
$photo = imagecreatefromjpeg('photos/'.$photo['image']);
$height = imagesx($photo);
$width = imagesx($photo);
if ($width > $_POST['width']) {
$r = $width / $_POST['width'];
$newwidth = $width / $r;
$newheight = $height / $r;
}
$image = imagecreatetruecolor($width, $height);
$image2 = imagecopyresampled($image, $photo, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
$position = explode(" ", $_POST['background']);
$image3 = imagecrop($image, [
'x' => str_replace(array('-', 'px'), array('', ''), $position[0]),
'y' => str_replace(array('-', 'px'), array('', ''), $position[1]),
'width' => $_POST['width'],
'height' => $_POST['height']
]);
$stamp = imagecreatefrompng('img/logo.png');
imagecopyresized($image3, $stamp, 0, 0, 0, 0, 147, 50, imagesx($stamp), imagesy($stamp));
imagepng($image3, "created/".time().".png", 9);
imagecopyresized will copy and scale and image. This uses a fairly primitive algorithm that tends to yield more pixelated results.
a simple example for a better quality is:
<?php
// The file
$filename = 'test.jpg';
$percent = 0.5;
// Content type
header('Content-type: image/jpeg');
// Get new dimensions
list($width, $height) = getimagesize($filename);
$new_width = $width * $percent;
$new_height = $height * $percent;
// Resample
$image_p = imagecreatetruecolor($new_width, $new_height);
$image = imagecreatefromjpeg($filename);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
// Output
imagejpeg($image_p, null, 100);
?>
you should have a look at this post here
use quality of image from 1-100.
imagejpeg($image, $new_image_name, 99);
I have a problem of image quality after a resize. Could you help me to find a solution to my problem?
This is a page where an image has been resized
goo.gl/5mYxxb , 460*275 and this the code that I am using to resize :
$newwidth = 460;
$newheight = 275;
$newwidth1 = 146;
$newheight2 = 88;
$temp = imagecreatetruecolor($newwidth, $newheight);
$black2 = imagecolorallocatealpha($temp,0,0,0,65);
header('Content-Type: image/jpeg');
list($width, $height) = getimagesize($path);
$src = imagecreatefromjpeg($path);
imagecopyresampled($temp, $src, 0,0,0,0, $newwidth, $newheight, $width, $height);
Imagettftext($temp, 16, 0, $start_x, $start_y, $black2, $font , "text");
imagejpeg($temp, $path,95);
imagedestroy($temp);
$temp2 = imagecreatetruecolor($newwidth1, $newheight2);
imagecopyresampled($temp2, $src, 0,0,0,0, $newwidth1, $newheight2, $width, $height);
Imagettftext($temp2, 8, 0, $start_x2, $start_y2, $black2, $font , "text");
imagejpeg($temp2,$pathFile ,90);
imagedestroy($temp2);
imagedestroy($src);
Im Trying to watermark and resize and imagen but im doing something wrong on the resize part any help please
$image = #imagecreatefromjpeg('15_pic1.jpg');
$watermark = #imagecreatefrompng('watermark.png');
$imagewidth = imagesx($image);
$imageheight = imagesy($image);
$watermarkwidth = imagesx($watermark);
$watermarkheight = imagesy($watermark);
$startwidth = (($imagewidth - $watermarkwidth));
$startheight = (($imageheight - $watermarkheight));
imagecopy($image, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight);
//resize
list($width, $height) = getimagesize($image);
imagecopyresized($thumb, $image, 0, 0, 0, 0, 300, 300, $width, $height);
header("Content-type: image/jpeg"); imagejpeg($thum);
imagedestroy($image);
imagedestroy($watermark);
Got it working here is the code
$img = "15_pic1.jpg";
$wat = "watermark.png" ;
$wit = "300";
$hei = "300";
$imagestart = #imagecreatefromjpeg($img);
$watermark = #imagecreatefrompng($wat);
list($width, $height) = getimagesize($img);
$imagewidth = imagesx($imagestart);
$imageheight = imagesy($imagestart);
$watermarkwidth = imagesx($watermark);
$watermarkheight = imagesy($watermark);
$startwidth = (($imagewidth - $watermarkwidth));
$startheight = (($imageheight - $watermarkheight));
imagecopy($imagestart, $watermark, $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight);
$thumb = imagecreatetruecolor($wit, $hei);
imagecopyresized($thumb, $imagestart, 0, 0, 0, 0, $wit, $hei, $width, $height);
header("Content-type: image/jpeg"); imagejpeg($thumb);
imagedestroy($image);
imagedestroy($watermark);
imagedestroy($thumb);
Im using Ajax Crop from enter link description here and I'd like to add a watermark to the script. The following is my script.
WATERMARK
$image_path = "watermark.png";
function watermark_image($oldimage_name, $new_image_name){
global $image_path;
list($owidth,$oheight) = getimagesize($oldimage_name);
$width = 500; $height = 100;
$im = imagecreatetruecolor($width, $height);
$img_src = imagecreatefromjpeg($oldimage_name);
imagecopyresampled($im, $img_src, 0, 0, 0, 0, $width, $height, $owidth, $oheight);
$watermark = imagecreatefrompng($image_path);
list($w_width, $w_height) = getimagesize($image_path);
$pos_x = $width - $w_width;
$pos_y = $height - $w_height;
imagecopy($im, $watermark, $pos_x, $pos_y, 0, 0, $w_width, $w_height);
imagejpeg($im, $new_image_name, 100);
imagedestroy($im);
unlink($oldimage_name);
return true;
}
UPLOAD AND RESIZE PART
function resizeThumb($arr){
$date = md5(time());
$arr['temp_uploadfile'] = $arr['img_src'];
$arr['new_uploadfile'] = $arr['uploaddir'].strtolower($date).'.jpg';
asidoImg($arr);
exit;
}
I tried adding
$arr = watermark_image($arr['temp_uploadfile'],
$arr['uploaddir'].strtolower($date).'.jpg');
in place of
$arr['new_uploadfile'] = $arr['uploaddir'].strtolower($date).'.jpg';
but this didnt work.
Could someone help me?
Download the files and test
It turns out the script uses ASIDO and it has a built in WATERMARK TOOL.
In func.php I done the following.
function asidoImg2($arr){
include('asido/class.asido.php');
asido::driver('gd');
$height = $arr['height'];
$width = $arr['width'];
$x = $arr['x'];
$y = $arr['y'];
// process
$i1 = asido::image($arr['temp_uploadfile'], $arr['new_uploadfile']);
// fit and add white frame
if($arr['thumb'] === true){
Asido::Crop($i1, $x, $y, $width, $height);
asido::watermark($i1, 'watermark.png', ASIDO_WATERMARK_MIDDLE_LEFT, ASIDO_WATERMARK_SCALABLE_ENABLED, 1);
}
else{
Asido::Frame($i1, $width, $height, Asido::Color(255, 255, 255));
asido::watermark($i1, 'watermark.png', ASIDO_WATERMARK_MIDDLE_LEFT, ASIDO_WATERMARK_SCALABLE_ENABLED, 1);
}
// always convert to jpg
Asido::convert($i1, 'image/jpg');
$i1->Save(ASIDO_OVERWRITE_ENABLED);
$data = array(
'photo'=> $arr['new_uploadfile']
);
// echo $user_id;
// delete old file
echo $data['photo'];
}
Do any of you know of a good php class I can use to download an image from a remote source, re-size it to 120x120 and save it with a file name of my choosing?
So basically I would have an image at "http://www.site.com/image.jpg" save to my web server "/images/myChosenName.jpg" as a 120x120 pixels.
Thanks
You can try this:
<?php
$img = file_get_contents('http://www.site.com/image.jpg');
$im = imagecreatefromstring($img);
$width = imagesx($im);
$height = imagesy($im);
$newwidth = '120';
$newheight = '120';
$thumb = imagecreatetruecolor($newwidth, $newheight);
imagecopyresized($thumb, $im, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
imagejpeg($thumb,'/images/myChosenName.jpg'); //save image as jpg
imagedestroy($thumb);
imagedestroy($im);
?>
More information about PHP image function : http://www.php.net/manual/en/ref.image.php
You can resize keeping the ratio of image
$im = imagecreatefromstring($img);
$width_orig = imagesx($im);
$height_orig = imagesy($im);
$width = '800';
$height = '800';
$ratio_orig = $width_orig/$height_orig;
if ($width/$height > $ratio_orig) {
$width = $height*$ratio_orig;
} else {
$height = $width/$ratio_orig;
}
If you're looking to have the ability to do this for both jpg and png file formats, here's what helped me:
$imgUrl = 'http://www.example.com/image.jpg';
// or $imgUrl = 'http://www.example.com/image.png';
$fileInfo = pathinfo($imgUrl);
$img = file_get_contents($imgUrl);
$im = imagecreatefromstring($img);
$originalWidth = imagesx($im);
$originalHeight = imagesy($im);
$resizePercentage = 0.5;
$newWidth = $originalWidth * $resizePercentage;
$newHeight = $originalHeight * $resizePercentage;
$tmp = imagecreatetruecolor($newWidth, $newHeight);
if ($fileInfo['extension'] == 'jpg') {
imagecopyresized($tmp, $im, 0, 0, 0, 0, $newWidth, $newHeight, $originalWidth, $originalHeight);
imagejpeg($tmp, '/img/myChosenName.jpg', -1);
}
else if ($fileInfo['extension'] == 'png') {
$background = imagecolorallocate($tmp , 0, 0, 0);
imagecolortransparent($tmp, $background);
imagealphablending($tmp, false);
imagesavealpha($tmp, true);
imagecopyresized($tmp, $im, 0, 0, 0, 0, $newWidth, $newHeight, $originalWidth, $originalHeight);
imagepng($tmp, '/img/myChosenName.png');
}
else {
// This image is neither a jpg or png
}
imagedestroy($tmp);
imagedestroy($im);
The extra code on the png side of things ensures that the saved image contains any and all transparent sections.