Function retrieve_kodak_set

Test/astc_test_image_dl.py:118–157

Download the public domain Kodak image set. To make test set mosaics easier to build we rotate images to make everything landscape.

()

def retrieve_kodak_set():
    '''
    Download the public domain Kodak image set.

    To make test set mosaics easier to build we rotate images to make
    everything landscape.
    '''
    test_set = 'Kodak'

    # Download the original RGB images
    for i in range(1, 25):
        src_url = f'http://r0k.us/graphics/kodak/kodak/kodim{i:02}.png'

        dst_file = f'ldr-rgb-kodak{i:02}.png'
        dst_path = TEST_IMAGE_DIR / 'Kodak' / 'LDR-RGB' / dst_file
        download(test_set, i, src_url, dst_path)

        # Canonicalize image aspect
        make_landscape(dst_path)

    # Make some correlated alpha RGBA images
    src_dir = TEST_IMAGE_DIR / 'Kodak' / 'LDR-RGB'
    dst_dir = TEST_IMAGE_DIR / 'KodakSim' / 'LDR-RGBA'

    for i in (22, 23):
        src_path = src_dir / f'ldr-rgb-kodak{i:02}.png'
        dst_path = dst_dir / f'ldr-rgba-kodak{i:02}+ca.png'
        make_mixed_image(src_path, src_path, dst_path)

    # Make some non-correlated alpha RGBA images
    for i, j in ((22, 24), (23, 20)):
        srca_path = src_dir / f'ldr-rgb-kodak{i:02}.png'
        srcb_path = src_dir / f'ldr-rgb-kodak{j:02}.png'

        dst_path = dst_dir / f'ldr-rgba-kodak{i:02}+{j:02}+nca.png'
        make_mixed_image(srca_path, srcb_path, dst_path)

    # Make a large montage
    dst_path = TEST_IMAGE_DIR / 'KodakMnt' / 'LDR-RGBA' / 'ldr-rgb-montage.png'
    make_montage(src_dir, dst_path)


def main() -> int: