I found a quite large list of available libraries on Node.JS wiki but I'm not sure which of those are more mature and provide better performance. Basically I want to do the following:
我在Node上找到了一个相当大的可用库列表。JS wiki，但我不确定哪一个更成熟，提供更好的性能。基本上我想做的是:
- load some images to a server from external sources
- 从外部源加载一些图像到服务器。
- put them onto one big canvas
- 把它们放到一个大画布上。
- crop and mask them a bit
- 修剪一下，把它们遮一下
- apply a filter or two
- 应用一两个过滤器
- Resize the final image and give a link to it
- 调整最终图像的大小并给它一个链接
Big plus if the node package works on both Linux and Windows.
如果节点包在Linux和Windows上都能运行，那就更好了。
3 个解决方案
#1
173
Answering my own question
回答我的问题
I spent two days digging through Node.js graphics libraries.
我花了两天时间研究Node。js图形库。
node-canvas
- I tried it first since I'm quite familiar with
<canvas>API. It's a huge plus for a library. - 我首先尝试了它，因为我非常熟悉
- it requires Cairo which doesn't have an easy Windows download. I found it in GTK+ distribution though.
- 它需要Cairo，它没有简单的Windows下载。我在GTK+发行版中找到了它。
- moreover it needs native library binding code to be compiled on module installation. It uses Node-Waf which hasn't being ported to Windows yet.
- 此外，它还需要在模块安装上编译的本地库绑定代码。它使用的节点- waf还没有被移植到Windows上。
通用汽车
- mature
- 成熟的
- runs on Windows smoothly
- 在Windows上运行顺利
- docs are ok but not thorough: I had to look up into source code to figure out what API is available
- 文档还可以，但还不够全面:我必须查找源代码以确定哪些API是可用的
- unfortunately there's no easy way to combine images with gm. Maybe there's some way to achieve that but I haven't found one after two hours spent with it.
- 不幸的是，并没有简单的方法将图像与gm结合在一起。也许有一些方法可以实现这一点，但是我花了两个小时之后还没有找到。
node-imagemagick
- The official repo has very few basic ImageMagick commands covered but I used this fork (good thing that NPM can pull libraries directly from git repositories). It has bindings for
montagewhich does exactly what I need. - 官方的repo几乎没有涉及到基本的ImageMagick命令，但是我使用了这个fork (NPM可以直接从git库中提取库)。它有蒙太奇的绑定，这正是我需要的。
- ImageMagick is quite slow, though it works on Windows.
- ImageMagick非常慢，尽管它在Windows上运行。
Node-Vips
- Huge plus: it uses an incredible VIPS library which I'm familiar with. VIPS is very fast and optimized for large images. It's very smart about utilizing hardware resources: if your machine has a lot of RAM it'll do all processing in memory but will switch to hard-drive caches if memory is scarce or required for other applications.
- 巨大的好处:它使用了一个我所熟悉的令人难以置信的vip库。vip是非常快速和优化的大型图像。使用硬件资源是非常明智的:如果您的机器有大量RAM，它将在内存中进行所有处理，但如果内存不足或其他应用程序需要内存，则将切换到硬盘缓存。
- same as node-canvas it requires Node-Waf so it's not available for Windows yet.
- 和node-canvas一样，它需要Node-Waf，所以还不能用于Windows。
I also looked at other libraries from the list but most of them are either very immature or do not suit my use case. I would really like to try migrating to either Node-Canvas or Node-Vips when Node-Waf gets ported to Windows but until then I'll stick to node-imagemagick.
我还从列表中查看了其他库，但大多数库要么非常不成熟，要么不适合我的用例。当Node-Waf被移植到Windows时，我真的想尝试迁移到Node-Canvas或node- vip，但在此之前，我将坚持使用node-imagemagick。
#2
5
I'd strongly advise you to check gm with GraphicsMagick. Stable, feature rich, clean API, great docs, and fast.
我强烈建议你用GraphicsMagick来检查gm。稳定，特性丰富，干净的API，优秀的文档，快速。
And it works both on Windows and Linux / MacOS / BSD / ...
它在Windows和Linux / MacOS / BSD /…
#1
173
Answering my own question
回答我的问题
I spent two days digging through Node.js graphics libraries.
我花了两天时间研究Node。js图形库。
node-canvas
- I tried it first since I'm quite familiar with
<canvas>API. It's a huge plus for a library. - 我首先尝试了它，因为我非常熟悉
- it requires Cairo which doesn't have an easy Windows download. I found it in GTK+ distribution though.
- 它需要Cairo，它没有简单的Windows下载。我在GTK+发行版中找到了它。
- moreover it needs native library binding code to be compiled on module installation. It uses Node-Waf which hasn't being ported to Windows yet.
- 此外，它还需要在模块安装上编译的本地库绑定代码。它使用的节点- waf还没有被移植到Windows上。
通用汽车
- mature
- 成熟的
- runs on Windows smoothly
- 在Windows上运行顺利
- docs are ok but not thorough: I had to look up into source code to figure out what API is available
- 文档还可以，但还不够全面:我必须查找源代码以确定哪些API是可用的
- unfortunately there's no easy way to combine images with gm. Maybe there's some way to achieve that but I haven't found one after two hours spent with it.
- 不幸的是，并没有简单的方法将图像与gm结合在一起。也许有一些方法可以实现这一点，但是我花了两个小时之后还没有找到。
node-imagemagick
- The official repo has very few basic ImageMagick commands covered but I used this fork (good thing that NPM can pull libraries directly from git repositories). It has bindings for
montagewhich does exactly what I need. - 官方的repo几乎没有涉及到基本的ImageMagick命令，但是我使用了这个fork (NPM可以直接从git库中提取库)。它有蒙太奇的绑定，这正是我需要的。
- ImageMagick is quite slow, though it works on Windows.
- ImageMagick非常慢，尽管它在Windows上运行。
Node-Vips
- Huge plus: it uses an incredible VIPS library which I'm familiar with. VIPS is very fast and optimized for large images. It's very smart about utilizing hardware resources: if your machine has a lot of RAM it'll do all processing in memory but will switch to hard-drive caches if memory is scarce or required for other applications.
- 巨大的好处:它使用了一个我所熟悉的令人难以置信的vip库。vip是非常快速和优化的大型图像。使用硬件资源是非常明智的:如果您的机器有大量RAM，它将在内存中进行所有处理，但如果内存不足或其他应用程序需要内存，则将切换到硬盘缓存。
- same as node-canvas it requires Node-Waf so it's not available for Windows yet.
- 和node-canvas一样，它需要Node-Waf，所以还不能用于Windows。
I also looked at other libraries from the list but most of them are either very immature or do not suit my use case. I would really like to try migrating to either Node-Canvas or Node-Vips when Node-Waf gets ported to Windows but until then I'll stick to node-imagemagick.
我还从列表中查看了其他库，但大多数库要么非常不成熟，要么不适合我的用例。当Node-Waf被移植到Windows时，我真的想尝试迁移到Node-Canvas或node- vip，但在此之前，我将坚持使用node-imagemagick。
#2
5
I'd strongly advise you to check gm with GraphicsMagick. Stable, feature rich, clean API, great docs, and fast.
我强烈建议你用GraphicsMagick来检查gm。稳定，特性丰富，干净的API，优秀的文档，快速。
And it works both on Windows and Linux / MacOS / BSD / ...
它在Windows和Linux / MacOS / BSD /…