image-manipulation

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PHP GD imagecopyresampled() and flip it horizontal

I\'m rendering a PNG image from another PNG image with imagecopyresampled(). Now i want some parts of the image to be flipped horizontal, so i have tried this:[详细]

2023-04-13 01:45 分类：问答
RMagick remove white background from image and make it transparent

I need to remove the white background from this image and make the background transparent. So it\'s just a black tick on the transparent background exported as a 开发者_开发问答png.[详细]

2023-04-12 05:53 分类：问答
Use PHP to convert JPEGs to transparent PNG

I have a lot of JPEG images that I want to convert to PNG images using PHP. The JPEGs are going to be uploaded by client开发者_如何学Cs so I can\'t trust them to make sure they are in the right format[详细]

2023-04-09 07:29 分类：问答
Javascript Image manipulation Invert color

I am trying to play with an image inside a webpage using javascript and it is being a pain. I have no coding platform atm except my browser. It should invert the color I think but i\'m not sure what i[详细]

2023-04-09 05:48 分类：问答
Resizing an Image using Imagemagick convert

I have a YUV420 image of size 1280x720. I am trying to resize it to 720x576 using convert (Imagemagick) using below commandline options. But the generated output file doesnot seem to be a proper resiz[详细]

2023-04-08 06:24 分类：问答
Display colored images in greyscale on web page

How can I convert images on my website into greyscale? I don\'t care if it\'s PHP or JS, but I think PHP is nicer.[详细]

2023-04-05 20:04 分类：问答
Programmatically radius image

Currently our website department have a process where they manually radius the corners of each images to +4% to create \"nicer\" looking images for the 开发者_JAVA百科web.[详细]

2023-04-02 14:58 分类：问答
How to alter images with JavaScript?

I wanted to build a JS applet for a user to customize his product color before ordering. An example can be seen here - http://www.lunacommerce.com/diy-ipone4-parts.php[详细]

2023-04-01 14:25 分类：问答
Webbrowser Javascript image encoding and resizing

I\'m on my way creating a mobile app using phonegap and jquery mobile. i realized huge performance issues by displaying a list of images on the device. the reason must be that those images have a quit[详细]

2023-03-28 16:36 分类：问答
Kohana [ Fatal Error ]: Class 'Image' not found

ErrorException [ Fatal Error ]: Class \'Image\' not found. i have created an image object: 开发者_高级运维[详细]

2023-03-27 05:55 分类：问答