Gif animation

[walidjlidi]

Is it possible to background fill of an animated gif file with a png file usign this library (Use GIF as watermark image.). If is possible can you precise which function i have to use?

the result will be like this http://www.css-101.org/articles/two-layer-image/animated-gif-with-a-jpg-background.php

[coldume]

GDEnhancer only support animated GIF as a background , animated GIF will lose animation as a watermark.
Reasons:

1. GIF doesn't support alpha channel (no semi-transparent)
2. PNG has alpha channel (support semi-transparent)
3. If you want use animated GIF as a watermark, to keep the whole image's animation, the output image should be GIF format.
4. You will encounter problems when watermarking a semi-transparent PNG image, the semi-transparent area will become ugly.
   
   I recommend:
   It is better to keep the image's original format, never use animated GIF as a watermark, even some scripts support the feature.

[walidjlidi]

I' m totally agree with you but application requirements demand to
watermark a png by an animated gif file and the result is an animated gif
file. Can you please help with a script make this tip. I try to write this
operation from scratch but result is a very slow operation.

[coldume]

Sorry, I would help but this is a very complicated task, even Photoshop doesn't support animated GIF as a layer. I need to change the whole mechanism that GDEnhancer work.
I will add this feature in the second version in GDEnhancer, but in months later.
Even GDEnhancer support this in the future, it will costs a lot more more server resource than usual, again, not worth it.

[walidjlidi]

Thank you for help. Have you some solution to optimize code?
i want to accelerate this task . Just ideas.

[coldume]

So your watermark is animated GIF, how about your background image? Is it PNG only or perhaps another animated GIF?

[walidjlidi]

i take a transparent animated gif file and i want to add a png file as a
background to this gif.that's all.

In my code i split gif into separate frame and i water mark the png file by
those frame and transform new frames to a new animated gif.

But this operation demand a lot of ressource. Tell me if you want to take a
look to php function ?

2014-03-19 15:15 GMT+02:00 Xianghan Wang notifications@github.com:

So your watermark is animated GIF, how about your background image? Is it
PNG only or perhaps another animated GIF?

Reply to this email directly or view it on GitHubhttps://github.com//issues/12#issuecomment-38048598
.

[coldume]

Sure, you can paste your code here, or send me through email if you wanna keep the code private.

my email: coldume[at]gmail[dot]com

[walidjlidi]

No problem i paste my code here :

open($imagebg) ->resize(new Box(600, 600)) ->save('assets/'.$id.'/try/bg.png'); //extract gif & rezize layers $i = 0; foreach ($imagine->open($gif)->layers() as $layer) { $layer->resize(new Box(450, 450))->save("assets/".$id."/try/frame-$i.png"); $i++; } //*************************** header('Content-Type: image/png'); // Create the image $im = imagecreatefrompng('assets/'.$id.'/try/bg.png'); // Create some colors $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0, 0); //imagefilledrectangle($im, 0, 0, 399, 29, $grey); // The text to draw //$text = 'Testing...'; // Replace path by your own font path $font = 'php/oneway.ttf'; // Add some shadow to the text imagettftext($im, 60, 0, 600, 800, $white, $font, $text); // Add the text imagettftext($im, 45, 0, 150,550, $white, $font, $text); // Using imagepng() results in clearer text compared with imagejpeg() imagepng($im,'assets/'.$id.'/try/bg.png'); imagedestroy($im); //************************** //past gif file on background use gdenhancer\GDEnhancer; include_once 'php/gdenhancer/GDEnhancer.php'; for ($c =0; $c < $i; $c++) { $imagee=null; $save=null; $imagee = new GDEnhancer("assets/".$id."/try/bg.png"); $imagee->layerImage("assets/".$id."/try/frame-$c.png"); $imagee->layerMove(0,'topcenter',0,0); $save = $imagee->save(); header('content-type:'.$save['mime'] ); $filename = "assets/".$id."/try/frame-$c.png"; file_put_contents($filename, $save['contents']); imagedestroy($imagee); } //implde a gif file $image = $imagine->open("assets/".$id."/try/frame-0.png"); $layers = $image->layers(); for ($c = 1; $c < $i; $c++) { $layers[] = $imagine->open("assets/".$id."/try/frame-$c.png"); } $name = date("Y-m-d_H-i-s").'.gif'; $image->save("assets/".$id."/try/".$name, array( 'animated' => true, 'animated.delay' => 150, // delay in ms 'animated.loops' => 0, // number of loops, 0 means infinite )); imagedestroy($image); for ($c = 0; $c < $i; $c++) { unlink("assets/".$id."/try/frame-$c.png"); } unlink("assets/".$id."/try/bg.png"); echo '

' ;/\* / */ ?>

2014-03-19 16:03 GMT+02:00 Xianghan Wang notifications@github.com:

Sure, you can paste your code here, or send me through email if you wanna
keep the code private.

my email: coldume[at]gmail[dot]com

Reply to this email directly or view it on GitHubhttps://github.com//issues/12#issuecomment-38053464
.

[coldume]

May I know what is the size(in KB) of the original PNG image and the size of output GIF?
By the way, imagedestroy($imagee); is not needed. As $imagee is not a GD resource, and GDEnhancer will destroy GD handler automatically.

[walidjlidi]

In javascript, user can't upload file up than 2 mo.
and i'm not making any restriction about gif file. Until now, the average
of size of gif file uploaded is 1 mo.

2014-03-19 16:41 GMT+02:00 Xianghan Wang notifications@github.com:

May I know what is the size(in KB) of the original PNG image and the size
of output GIF?
By the way, imagedestroy($imagee); is not needed. As $imagee is not a GD
resource, and GDEnhancer will destroy GD handler automatically.

Reply to this email directly or view it on GitHubhttps://github.com//issues/12#issuecomment-38058102
.

[coldume]

I mean, dose your code run successfully? What is the image size of the test image and output image?

[walidjlidi]

if i run this code with recommended image size it take one minute to
generate gif file.

2014-03-19 16:59 GMT+02:00 Xianghan Wang notifications@github.com:

I mean, dose your code run successfully? What is the image size of the
test image and output image?

Reply to this email directly or view it on GitHubhttps://github.com//issues/12#issuecomment-38060380
.

[walidjlidi]

that's why i try to optimize my code to generate the gif file in a short
duration.

2014-03-19 17:03 GMT+02:00 walid Jlidi walid.jlidi89@gmail.com:

tha

2014-03-19 17:03 GMT+02:00 walid Jlidi walid.jlidi89@gmail.com:

if i run this code with recommended image size it take one minute to

generate gif file.

2014-03-19 16:59 GMT+02:00 Xianghan Wang notifications@github.com:

I mean, dose your code run successfully? What is the image size of the

test image and output image?

Reply to this email directly or view it on GitHubhttps://github.com//issues/12#issuecomment-38060380
.

[coldume]

So your code is working, can you link original image and the output image?

[walidjlidi]

can you please explain more ?

2014-03-19 17:07 GMT+02:00 Xianghan Wang notifications@github.com:

So your code is working, can you link original image and the output image?

Reply to this email directly or view it on GitHubhttps://github.com//issues/12#issuecomment-38061481
.

[coldume]

I have never use imagine before, so I can't help too much. Try to insert microtime(true); on different location of your code. And find what part of your code takes more time to run. Let me know if you find it. :)

[walidjlidi]

Ok i will do this.

2014-03-19 17:34 GMT+02:00 Xianghan Wang notifications@github.com:

I have never use imagine before, so I can't help too much. Try to insert
microtime(true); on different location of your code. And find what part of
your code takes more time to run. Let me know if you find it. :)

Reply to this email directly or view it on GitHubhttps://github.com//issues/12#issuecomment-38065274
.