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img_path = outDirPath + 'images/' + imgName | |
img = cv2.imread(img_path, cv2.IMREAD_COLOR) | |
'''FIRST VERSION''' | |
mask = cv2.cvtColor(mask, cv2.COLOR_RGB2GRAY) | |
dest = cv2.bitwise_and(img, img, mask = mask) | |
for coordinates in coordinatesList: | |
coords = coordinates[:len(coordinates)-1] | |
#ANCIEN | |
X = [pt[0] for pt in coords] | |
Y = [pt[1] for pt in coords] | |
Xmin=np.amin(X) | |
Xmax=np.amax(X) | |
Ymin=np.amin(Y) | |
Ymax=np.amax(Y) | |
crop_img = dest[int(Ymin):int(Ymax), int(Xmin):int(Xmax)] | |
'''SECOND VERSION (way better)''' | |
lengths=[dist(coords[i],coords[i+1]) for i in range(3)] | |
maxLen = np.amax(lengths) | |
width = maxLen | |
height = maxLen / 1.41891891 | |
src = np.float32([ | |
[coords[0][0], coords[0][1]], | |
[coords[1][0], coords[1][1]], | |
[coords[3][0], coords[3][1]], | |
[coords[2][0], coords[2][1]] | |
], dtype=float) | |
dst = np.float32([ | |
[0., 0.], | |
[width, 0.], | |
[0., height], | |
[width, height] | |
], dtype=float) | |
M = cv2.getPerspectiveTransform(src, dst) | |
new_crop_img = cv2.warpPerspective(img, M, (int(width), int(height))) | |
''' | |
plt.subplot(121), plt.imshow(crop_img), plt.title('Input') | |
plt.subplot(122), plt.imshow(new_crop_img), plt.title('Output') | |
plt.show() | |
cv2.waitKey(0) | |
''' |
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