Created
October 28, 2021 08:28
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| import numpy as np | |
| import matplotlib.pyplot as plt | |
| import imageio | |
| url = 'https://archive.org/download/10thframekixxc64800dpi48bit/10th%20Frame%20%28Kixx%29_C64_Cassette_800dpi_48bit.tif' | |
| im0 = imageio.imread(url) | |
| print('im0:',np.min(im0),np.max(im0),im0.shape,im0.dtype) | |
| im0gray = 0.299*np.float32(im0[:,:,0]) + 0.587*np.float32(im0[:,:,1]) + 0.114*np.float32(im0[:,:,2]) | |
| im0gray = im0gray / np.max(im0gray) | |
| im1 = np.uint16(np.round( im0gray*((1<<10)-1) )) | |
| print('im1:',np.min(im1),np.max(im1),im1.shape,im1.dtype) | |
| imageio.imwrite('sample10bit.png',im1) | |
| plt.figure() | |
| plt.imshow(np.float32(im0)/(1<<16)) | |
| plt.figure() | |
| plt.imshow(im1,cmap='gray') |
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