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Convert RGBA PNG to RGB with PIL
I'm using PIL to convert a transparent PNG image uploaded with Django to a JPG file. The output looks broken.
7 Answers
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How to merge images in command line? [closed]
... Some tutorial about it here.
Example (vertical sprite):
convert image1.png image2.png image3.png -append result/result-sprite.png
Example (horizontal sprite):
convert image1.png image2.png image3.png +append result/result-sprite.png
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favicon.png vs favicon.ico - why should I use PNG instead of ICO?
Other than the fact that PNG is a more common image format, is there any technical reason to favor favicon.png vs. favicon.ico?
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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.
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LR性能测试结果样例分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...源等几个方面分析，如图1- 1所示。性能测试结果分析的一个重要的原则是以性能测试的需求指标为导向。我们回顾一下本次性能测试的目的，正如 所列的指标，本次测试的要求是验证在30分钟内完成2000次用户登录系统，然后进...
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...
搭建高可用mongodb集群（二）—— 副本集 - 大数据 & AI - 清泛网 - 专注C/...
...本集呢？打魔兽世界总说打副本，其实这两个概念差不多一个意思。游戏里的副本是指玩家集中在高峰时间去一个场景打怪，会出现玩家暴多怪物少的情况，游戏开发商为了保证玩家的体验度，就为每一批玩家单独开放一个同样...
使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...而却步。
为了缓解这些限制，我们为 App Inventor 开发了一个蓝牙 LE 组件，以提供一种标准化、快速且简单的方法来创建可连接到物联网设备的移动应用程序 [1]。
在构建 BluetoothLE 组件时，我们融合了两项主要技术：MIT App Invento...
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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