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Problem in copying part of image to another

asked 2019-08-12 14:26:46 -0500

lalit gravatar image

updated 2019-08-12 14:33:50 -0500

berak gravatar image

How to resolve this problem

>>> img=cv2.imread("d:\\OCR Readers\\CPU images\\50190025579077\\AO_Form_1.jpeg")
>>> img.shape
(1000, 800, 3)
>>> part=img[400:440, 1080:1515]
>>> img2=cv2.imread("d:\\OCR Readers\\white1.png")
>>> img2.shape
(2338, 1651, 3)
>>> img2[15:55, 130:565]=part

ValueError: could not broadcast input array from shape (40,0,3) into shape (40,435,3)
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answered 2019-08-14 06:58:49 -0500

dnns gravatar image

updated 2019-08-14 06:59:16 -0500

Because "part" in your example provides an undefined array. Your Image has the width 1000, but you're indexing 1080 to 1515. There is literatally nothing there to copy. The error message is a bit odd though, I admit.

I tried it out like this:

x = np.zeros((1000,800,3))

y = np.ones((40, 435,3))

x[400:440, 180:180+435] = y

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Thank you very much. got the concept and resolved the problem.

lalit gravatar imagelalit ( 2019-08-14 12:18:33 -0500 )edit
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Asked: 2019-08-12 14:26:46 -0500

Seen: 29 times

Last updated: Aug 14