def main(input_image, output_image, loglevel, num_palettes, colors_per_palette,
transparent_color):
"""
Converts any image into a indexed image containing a number of smaller sub-palettes (--num-palettes), each with a
fixed color length (--colors-per-palette). The conversion will assign each tile in the image one of
these sub-palettes to use (single-palette-per-tile constraint).
INPUT_IMAGE is the path of the image to convert and OUTPUT_IMAGE is where to save the converted image. All image
types supported by PIL (the Python image library) can be used.
:return:
"""
logger.setLevel(logging.getLevelName(loglevel))
echo("Converting...")
if not os.path.exists(input_image):
raise ClickException("The input image doesn't exist.")
with open(input_image, 'rb') as input_file:
try:
image = Image.open(input_file)
except OSError:
raise ClickException(
"The input image is not a supported image file.")
try:
converter = AikkuImageConverter(
image, convert_hex_str_color_to_tuple(transparent_color))
img = converter.convert(num_palettes, colors_per_palette)
except RuntimeError as err:
raise ClickException("The image could not be converted: " +
str(err))
echo(f"Saving image to {output_image}...")
try:
img.save(output_image)
except OSError as err:
raise ClickException("Error saving the image: " + str(err))
def _convert(self, image, transparent_color, mode, num_pals, dither_level):
if mode == ImageConversionMode.JUST_REORGANIZE:
converter = ImageConverter(image, transparent_color=transparent_color)
return converter.convert(num_pals, colors_per_palette=16, color_steps=-1, max_colors=256,
low_to_high=False, mosaic_limiting=False)
converter = AikkuImageConverter(image, transparent_color)
dither_mode = DitheringMode.NONE
if mode == ImageConversionMode.DITHERING_ORDERED:
dither_mode = DitheringMode.ORDERED
elif mode == ImageConversionMode.DITHERING_FLOYDSTEINBERG:
dither_mode = DitheringMode.FLOYDSTEINBERG
return converter.convert(
num_pals,
dithering_mode=dither_mode,
dithering_level=dither_level
)
def _convert(self, image, transparent_color, mode, num_pals, dither_level):
if mode == ImageConversionMode.JUST_REORGANIZE:
converter = ImageConverter(image,
transparent_color=transparent_color)
try:
return converter.convert(num_pals,
colors_per_palette=16,
color_steps=-1,
max_colors=256,
low_to_high=False,
mosaic_limiting=False)
except ValueError as e:
setattr(e, USER_ERROR_MARK, True)
raise e
converter = AikkuImageConverter(image, transparent_color)
dither_mode = DitheringMode.NONE
if mode == ImageConversionMode.DITHERING_ORDERED:
dither_mode = DitheringMode.ORDERED
elif mode == ImageConversionMode.DITHERING_FLOYDSTEINBERG:
dither_mode = DitheringMode.FLOYDSTEINBERG
return converter.convert(num_pals,
dithering_mode=dither_mode,
dithering_level=dither_level)