mirror of
https://github.com/arsenetar/dupeguru.git
synced 2024-10-29 21:05:57 +00:00
123 lines
4.3 KiB
Python
123 lines
4.3 KiB
Python
# Created By: Virgil Dupras
|
|
# Created On: 2006/09/01
|
|
# Copyright 2013 Hardcoded Software (http://www.hardcoded.net)
|
|
#
|
|
# This software is licensed under the "BSD" License as described in the "LICENSE" file,
|
|
# which should be included with this package. The terms are also available at
|
|
# http://www.hardcoded.net/licenses/bsd_license
|
|
|
|
from ._block import NoBlocksError, DifferentBlockCountError, avgdiff, getblocks2
|
|
|
|
# Converted to C
|
|
# def getblock(image):
|
|
# """Returns a 3 sized tuple containing the mean color of 'image'.
|
|
#
|
|
# image: a PIL image or crop.
|
|
# """
|
|
# if image.size[0]:
|
|
# pixel_count = image.size[0] * image.size[1]
|
|
# red = green = blue = 0
|
|
# for r,g,b in image.getdata():
|
|
# red += r
|
|
# green += g
|
|
# blue += b
|
|
# return (red // pixel_count, green // pixel_count, blue // pixel_count)
|
|
# else:
|
|
# return (0,0,0)
|
|
|
|
# This is not used anymore
|
|
# def getblocks(image,blocksize):
|
|
# """Returns a list of blocks (3 sized tuples).
|
|
#
|
|
# image: A PIL image to base the blocks on.
|
|
# blocksize: The size of the blocks to be create. This is a single integer, defining
|
|
# both width and height (blocks are square).
|
|
# """
|
|
# if min(image.size) < blocksize:
|
|
# return ()
|
|
# result = []
|
|
# for i in xrange(image.size[1] // blocksize):
|
|
# for j in xrange(image.size[0] // blocksize):
|
|
# box = (blocksize * j, blocksize * i, blocksize * (j + 1), blocksize * (i + 1))
|
|
# crop = image.crop(box)
|
|
# result.append(getblock(crop))
|
|
# return result
|
|
|
|
# Converted to C
|
|
# def getblocks2(image,block_count_per_side):
|
|
# """Returns a list of blocks (3 sized tuples).
|
|
#
|
|
# image: A PIL image to base the blocks on.
|
|
# block_count_per_side: This integer determine the number of blocks the function will return.
|
|
# If it is 10, for example, 100 blocks will be returns (10 width, 10 height). The blocks will not
|
|
# necessarely cover square areas. The area covered by each block will be proportional to the image
|
|
# itself.
|
|
# """
|
|
# if not image.size[0]:
|
|
# return []
|
|
# width,height = image.size
|
|
# block_width = max(width // block_count_per_side,1)
|
|
# block_height = max(height // block_count_per_side,1)
|
|
# result = []
|
|
# for ih in range(block_count_per_side):
|
|
# top = min(ih * block_height, height - block_height)
|
|
# bottom = top + block_height
|
|
# for iw in range(block_count_per_side):
|
|
# left = min(iw * block_width, width - block_width)
|
|
# right = left + block_width
|
|
# box = (left,top,right,bottom)
|
|
# crop = image.crop(box)
|
|
# result.append(getblock(crop))
|
|
# return result
|
|
|
|
# Converted to C
|
|
# def diff(first, second):
|
|
# """Returns the difference between the first block and the second.
|
|
#
|
|
# It returns an absolute sum of the 3 differences (RGB).
|
|
# """
|
|
# r1, g1, b1 = first
|
|
# r2, g2, b2 = second
|
|
# return abs(r1 - r2) + abs(g1 - g2) + abs(b1 - b2)
|
|
|
|
# Converted to C
|
|
# def avgdiff(first, second, limit=768, min_iterations=1):
|
|
# """Returns the average diff between first blocks and seconds.
|
|
#
|
|
# If the result surpasses limit, limit + 1 is returned, except if less than min_iterations
|
|
# iterations have been made in the blocks.
|
|
# """
|
|
# if len(first) != len(second):
|
|
# raise DifferentBlockCountError
|
|
# if not first:
|
|
# raise NoBlocksError
|
|
# count = len(first)
|
|
# sum = 0
|
|
# zipped = izip(xrange(1, count + 1), first, second)
|
|
# for i, first, second in zipped:
|
|
# sum += diff(first, second)
|
|
# if sum > limit * i and i >= min_iterations:
|
|
# return limit + 1
|
|
# result = sum // count
|
|
# if (not result) and sum:
|
|
# result = 1
|
|
# return result
|
|
|
|
# This is not used anymore
|
|
# def maxdiff(first,second,limit=768):
|
|
# """Returns the max diff between first blocks and seconds.
|
|
#
|
|
# If the result surpasses limit, the first max being over limit is returned.
|
|
# """
|
|
# if len(first) != len(second):
|
|
# raise DifferentBlockCountError
|
|
# if not first:
|
|
# raise NoBlocksError
|
|
# result = 0
|
|
# zipped = zip(first,second)
|
|
# for first,second in zipped:
|
|
# result = max(result,diff(first,second))
|
|
# if result > limit:
|
|
# return result
|
|
# return result
|