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imagelib: random crop func (unused)

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iperov 2021-04-15 21:43:18 +04:00
parent bee8628d77
commit 65432d0c3d
2 changed files with 12 additions and 1 deletions
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2
core/imagelib/__init__.py
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@ -14,7 +14,7 @@ from .reduce_colors import reduce_colors
from .color_transfer import color_transfer, color_transfer_mix, color_transfer_sot, color_transfer_mkl, color_transfer_idt, color_hist_match, reinhard_color_transfer, linear_color_transfer from .color_transfer import color_transfer, color_transfer_mix, color_transfer_sot, color_transfer_mkl, color_transfer_idt, color_hist_match, reinhard_color_transfer, linear_color_transfer
from .common import normalize_channels, cut_odd_image, overlay_alpha_image from .common import random_crop, normalize_channels, cut_odd_image, overlay_alpha_image
from .SegIEPolys import * from .SegIEPolys import *

11
core/imagelib/common.py
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@ -1,5 +1,16 @@
import numpy as np import numpy as np
def random_crop(img, w, h):
height, width = img.shape[:2]
h_rnd = height - h
w_rnd = width - w
y = np.random.randint(0, h_rnd) if h_rnd > 0 else 0
x = np.random.randint(0, w_rnd) if w_rnd > 0 else 0
return img[y:y+height, x:x+width]
def normalize_channels(img, target_channels): def normalize_channels(img, target_channels):
img_shape_len = len(img.shape) img_shape_len = len(img.shape)
if img_shape_len == 2: if img_shape_len == 2: