Convert Raw image to JPG

Question

I have the following issues when I try to run: the input would be something like file=/Downloads/canon_eos_70d_20.CR2

with Raw(file) as raw_image:
        buffered_image = np.array(raw_image.to_buffer())
        im = Image.frombuffer('RGB', (raw_image.metadata.width, raw_image.metadata.height), buffered_image, 'raw',
                              'RGB', 0, 1)
        im.save(os.path.split(file)[1] + '.jpg')
        print('Successfully saved file as JPG.')


'Unsupported Libraw version: %s.%s.%s.' % self.version_number

ImportError: Unsupported Libraw version: 0.19.2.

Any ideas? if not did anyone tried any other way to convert RAW images to jpg?

yes, I am doing. This is the only way that I found. any other suggestion @Roope — Osama Natouf, Nov 20 '19 at 11:13
if that's all you're doing why not just use `dcraw` directly? — Sam Mason, Nov 20 '19 at 11:47
`dcraw` is the original program behind `LibRaw`. you can just run `dcraw -c filename.cr2 | cjpeg > filename.jpg` at the command line as described on various tutorials on the web — Sam Mason, Nov 20 '19 at 18:06
you should probably just install a supported version of libraw then. Pillow does support PPM formatted files, which `dcraw` outputs by default. it would be easy to run `dcraw` using [`subprocess`](https://docs.python.org/3/library/subprocess.html) and do postprocessing from there. depends why you're using python — Sam Mason, Nov 20 '19 at 18:12
Have you tried rawpy instead? https://pypi.org/project/rawpy/ — Tomi Aarnio, Nov 28 '19 at 08:33

score 3 · Answer 1 · answered Oct 15 '22 at 06:37

Instead of using rawpy(had a postprocessing I could not seem to understand ) or rawkit (had complications with Libraw). Use PIL

from PIL import Image

file = r"/Downloads/canon_eos_70d_20.CR2"
im = Image.open(file)
rgb_im = im.convert('RGB')
rgb_im.save(file[:-4]+'.JPG')

score 0 · Answer 2 · answered Nov 20 '19 at 11:14

0

The front page of the rawkit documentation states this under requirements:

LibRaw 0.16.x (API version 10)

LibRaw 0.17.x (API version 11)

Should be clear then that 0.19.x is not supported.

answered Nov 20 '19 at 11:14

Roope

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Convert Raw image to JPG

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