当前位置: 动力学知识库 > 问答 > 编程问答 >

python - Getting error - 'could not find a writer'while giving imshow, imwrite command opencv

问题描述:

I am a beginner at opencv and python.

I have just installed opencv2.4.9 and enthought canopy-32bit. I am getting error for the following:

import cv2

image = cv2.imread('Lena.jpg')

cv2.imwrite('Mypic',image)

This is what I get:

c:\users\nam\appdata\local\temp\tmpokspbt.py in <module>()

3

4 image = cv2.imread('Lena.jpg')

----> 5 cv2.imwrite('Mypic',image)

error: ..\..\..\..\opencv\modules\highgui\src\loadsave.cpp:275: error: (-2) could not find a writer for the specified extension in function cv::imwrite_

网友答案:

you need to give an extension to imwrite(), so it knows, how to save(compress) it.

cv2.imwrite('Mypic.png',image)
# jpg,bmp,png,ppm,pgm,tiff supported 'out-of-the-box,
# webp,jp2 depending on if you compiled in the resp. 3rd party support
# no gif or tga.
网友答案:

You need to make sure you have the image type within the string you give to the imwrite(). imwrite() dose not have a default method to save, thus it is required within the name you give to it. instead of : cv2.imwrite('Mypic',image) you need to write :

cv2.imwrite('Mypic.The_format_you_want_to_save',image)

As an example:

cv2.imwrite('Mypic.jpg',image)
分享给朋友:
您可能感兴趣的文章:
随机阅读: