CODEWITHSUNDEEP
pythonimage-processingpython-imaging-librarycolor-space
Roman Nazarkin
Roman Nazarkin

Reputation: 2229

Convert image color space to RGB in Python

I'm working on the image processing script(Python with PIL library) and i need to convert color space of any image to RGB. I've tried this trick, but it works only with png images in RGBa color space:

image = Image.open(imageFile)
image.load()

# replace alpha channel with white color
self.im = Image.new('RGB', image.size, (255, 255, 255))
self.im.paste(image, mask=image.split()[3])

How to make this code universally to all images in any colorspace?

Thanks.

Upvotes: 3

Views: 15316

Answers (2)

Roman Nazarkin
Roman Nazarkin

Reputation: 2229

Found solution:

image = Image.open(imageFile)
image.load()

# replace alpha channel with white color
self.im = Image.new('RGB', image.size, (255, 255, 255))
self.im.paste(image, None)

in the self.im variable will be stored an image in RGB colorspace with white(255, 255, 255) alpha channel.

Upvotes: 2

entropiece
entropiece

Reputation: 389

Do you only want to use PIL? I would suggest the openCV version 2 python bindings cv2

http://docs.opencv.org/modules/imgproc/doc/miscellaneous_transformations.html#cv2.cvtColor

It has many possible conversions between the most common colourspaces.

If you dont want openCV you can use skimage

http://scikit-image.org/docs/dev/api/skimage.color.html#convert-colorspace

Upvotes: 0

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