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imageSaver.py
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imageSaver.py
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from PIL import Image
import os
import numpy as np
def buildImgArr(r, g=None, b=None):
if g is not None and b is not None:
img_Arr = np.zeros((r.shape[0], r.shape[1], 3), dtype=np.uint8)
img_Arr[:, :, 0] = r.clip(0, 255).astype('uint8')
img_Arr[:, :, 1] = g.clip(0, 255).astype('uint8')
img_Arr[:, :, 2] = b.clip(0, 255).astype('uint8')
else:
img_Arr = r.clip(0, 255).astype('uint8')
return img_Arr
def saveArrayToImg(arr, filename, mode="RGB"):
if len(arr.shape) < 3:
mode = "L"
img = Image.fromarray(arr, mode) # L
if os.path.exists(filename):
os.remove(filename)
img_io = open(filename, "wb")
img.save(img_io, "PNG")
img_io.close()
def reSampleArray(r, g, b):
if g is None or b is None:
return (r, g, b)
maxRes = max(r.shape[0], g.shape[0], b.shape[0])
img = [r, g, b]
for i in range(3):
ratio = maxRes//img[i].shape[0]
if ratio > 1:
img[i] = np.repeat(np.repeat(img[i], ratio, axis=1), ratio, axis=0)
return tuple(img)
def rotateImageSave(input, output, rotation):
colorImage = Image.open(input) # noqa
rotated = colorImage.rotate(rotation, expand=1)
img_io = open(output, "wb") # noqa
rotated.save(img_io, "JPEG")
img_io.close()