Created
August 28, 2017 08:48
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| import numpy as np | |
| import matplotlib.pyplot as plt | |
| import scipy.misc | |
| import png | |
| #import pil | |
| import matplotlib.image as mpimg | |
| def write_pgm(image, filename): | |
| """ Write grayscale image in PGM format to file. | |
| """ | |
| height, width = image.shape | |
| maxval = 65536 #= image.max() | |
| with open(filename, 'w') as f: | |
| f.write('P5 {} {} {}\n'.format(width, height, maxval)) | |
| image.tofile(f) | |
| fnames = [ | |
| 'CC_A', | |
| 'CC_CWF', | |
| 'CC_D65', | |
| 'CC_HOR', | |
| 'CC_TL84', | |
| 'FF_A', | |
| 'FF_CWF', | |
| 'FF_D65', | |
| 'FF_HOR', | |
| 'FF_TL84', | |
| 'dark' | |
| ] | |
| pathname = 'd:/Downloads/' | |
| dt = np.dtype('uint16') | |
| width = 4056 | |
| height = 3040 | |
| for f in fnames: | |
| infile = pathname+f+'_unpacked.raw' | |
| x=np.fromfile(infile,dtype=dt).reshape ((height,width)) | |
| print (x.max()) | |
| if isPNG: | |
| outfile = pathname+f+'.png' | |
| with open(outfile, 'wb') as fout: | |
| writer = png.Writer(width=x.shape[1], height=x.shape[0], bitdepth=16, greyscale=True) | |
| zgray2list = x.tolist() | |
| writer.write(fout, zgray2list) | |
| else: | |
| outfile = pathname+f+'.pgm' | |
| write_pgm(x,outfile) | |
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