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What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
... file-size compared to GIFs!
Good for: Photographs. Also, gradients.
PNG-8 - Lossless / Indexed
PNG is a newer format, and PNG-8 (the indexed version of PNG) is really a good replacement for GIFs. Sadly, however, it has a few drawbacks: Firstly it cannot support animation like GIF can (wel...
How to save a PNG image server-side, from a base64 data string
...g Nihilogic's "Canvas2Image" JavaScript tool to convert canvas drawings to PNG images.
What I need now is to turn those base64 strings that this tool generates, into actual PNG files on the server, using PHP.
...
Xcode 5 & Asset Catalog: How to reference the LaunchImage?
...mage (excluding the iPad images with no status bar):
LaunchImage-568h@2x.png
LaunchImage-700-568h@2x.png
LaunchImage-700-Landscape@2x~ipad.png
LaunchImage-700-Landscape~ipad.png
LaunchImage-700-Portrait@2x~ipad.png
LaunchImage-700-Portrait~ipad.png
LaunchImage-700@2x.png
LaunchImage-Landscape@2x~i...
CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...深刻理解CDN的具体工作过程。
Linux 是开放源代码的免费操作系统，已经成功应用于许多关键领域。Bind是Unix/FreeBSD/Linux等类Unix平台上非常有名DNS服务程序，Internet上超过60％的DNS运行的是bind。Bind的最新版本是9.x，用的比较多的...
Can PNG image transparency be preserved when using PHP's GDlib imagecopyresampled?
The following PHP code snippet uses GD to resize a browser-uploaded PNG to 128x128. It works great, except that the transparent areas in the original image are being replaced with a solid color- black in my case.
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Convert SVG to PNG in Python
How do I convert an svg to png , in Python? I am storing the svg in an instance of StringIO . Should I use the pyCairo library? How do I write that code?
...
Set transparent background using ImageMagick and commandline prompt
Suppose you have any image (PNG or JPG).
This image has a white background and I need to make this background transparent.
...
How to vertically align an image inside a div
...n class="helper"></span><img src="http://jsfiddle.net/img/logo.png" height=250px />
</div>
<div class="frame">
<span class="helper"></span><img src="http://jsfiddle.net/img/logo.png" height=25px />
</div>
<div class="frame">
<...
How to convert a SVG to a PNG with ImageMagick?
...ze of 16x16. When I use ImageMagick's convert program to convert it into a PNG, then I get a 16x16 pixel PNG which is way too small:
...
Capture HTML Canvas as gif/jpg/png/pdf?
... document.getElementById("mycanvas");
var img = canvas.toDataURL("image/png");
with the value in IMG you can write it out as a new Image like so:
document.write('<img src="'+img+'"/>');
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