OpenCV(4.5.4-dev) D:\a\opencv-python\opencv-python\opencv\modules\imgproc\src\resize.cpp:4051: error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize'
Explanation of the Error
The error message you encountered is: OpenCV(4.5.4-dev) D:\a\opencv-python\opencv-python\opencv\modules\imgproc\src\resize.cpp:4051: error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize'
.
This error occurs when the cv::resize
function in OpenCV is called with an empty image (ssize.empty()
assertion failed). In other words, the image you are trying to resize is empty or not properly loaded.
Possible Causes and Solutions
There are a few possible causes for this error. Here are some steps you can take to troubleshoot and resolve the issue:
Check if the image path is correct: Make sure that the image path you are providing to the
cv2.imread
function is correct. If the image file does not exist or the path is incorrect, thecv2.imread
function will returnNone
, resulting in an empty image. You can use theprint
function to check the path and verify if the image is loaded correctly [1].Verify if the image is loaded successfully: After reading the image using
cv2.imread
, check if the returned image is notNone
. If the image isNone
, it means that the image could not be loaded, possibly due to an incorrect path or unsupported image format. You can use anif
statement to handle the case when the image is not loaded successfully.Ensure the image is not empty: Before calling the
cv2.resize
function, verify that the image is not empty. You can do this by checking if the image has a valid size using the!ssize.empty()
assertion. If the image is empty, it means that it was not loaded correctly or there was an issue with the image file.Check for file format compatibility: OpenCV supports a wide range of image formats, but there might be cases where the image format is not supported. Ensure that the image file you are trying to load is in a compatible format, such as JPEG or PNG.
By following these steps, you should be able to identify and resolve the issue causing the !ssize.empty()
assertion error in the cv::resize
function.
Let me know if you need further assistance!