[英]PythonMagick: Convert RGB to Grayscale
I found this description link_1 , link_2 . 我发现此描述为link_1 , link_2 。
Trying to do so 尝试这样做
import PythonMagick
img = PythonMagick.Image('file.png')
img.colorSpace('GRAYColorspace')
Return this 返回这个
ArgumentError: Python argument types in
Image.colorSpace(Image, str)
did not match C++ signature:
colorSpace(class Magick::Image {lvalue})
colorSpace(class Magick::Image {lvalue}, enum MagickCore::ColorspaceType)
How to do it? 怎么做?
PythonMagick already supports ColorSpaceTypes since version 9.10 从9.10版本开始,PythonMagick已经支持ColorSpaceTypes
http://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=25229 http://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=25229
Here's an example to accomplish what you're trying to do: 这是一个示例,可以完成您要执行的操作:
import PythonMagick as pm
img = pm.Image('file.png')
img.colorSpace(pm.ColorspaceType.GRAYColorspace)
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