error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'什么意思
时间: 2023-12-10 10:03:56 浏览: 28
This error message is related to OpenCV and it usually occurs when an image or video frame with an invalid size (width or height is zero or negative) is passed as input to a function that expects a valid size. To fix this error, you need to check the dimensions of your image or video frames before passing them as input to any OpenCV function that requires a valid size. You can use the `shape` attribute of numpy arrays or the `size()` method of OpenCV `Mat` objects to check the dimensions of your input data. Also, make sure that your video capture device or file is properly initialized and that you are reading valid frames from it.
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350: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'
这个错误是由于在使用cv2.imshow函数时,传入的图像尺寸出现了问题。具体地说,图像的宽度和高度需要大于0才能正确显示。根据引用、和中的报错信息,你可以查看你的代码中是否正确读取了图片,并且确认图片的尺寸是否正确。如果图片的尺寸为0,那么你需要检查图片文件是否存在、路径是否正确,或者尝试使用其他图片进行测试。如果图片的尺寸不为0,那么你可能需要检查其他代码部分,如图像处理过程中是否存在异常,或者其他函数的调用是否正确。请仔细检查你的代码,并确保所有输入参数的正确性,以解决这个错误。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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(-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'
(-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'是一个常见的错误消息,它表示在调用cv2.imshow函数时,图像的宽度或高度小于等于0。这个错误通常是由于图像加载失败或图像的尺寸设置不正确导致的。要解决这个问题,你可以尝试以下几个方法:
1. 确保你的图像路径正确并且图像文件存在。你可以使用绝对路径或相对路径指定图像路径。
2. 检查图像的尺寸是否正确。你可以使用cv2.imread函数加载图像并使用cv2.imshow函数显示图像之前,可以使用cv2.imread函数读取图像,并使用shape属性获取图像的宽度和高度。确保图像的尺寸大于0。
3. 检查图像是否被正确加载。有时候,图像文件可能损坏或格式不受支持,导致加载失败。你可以尝试使用其他图像文件进行测试,或者使用其他图像处理库加载图像。
4. 确保你的OpenCV版本是最新的。有些旧版本的OpenCV在处理图像时可能会出现一些问题。你可以尝试升级到最新版本的OpenCV来解决问题。
综上所述,当出现(-215:Assertion failed) size.width>0 && size.height>0 in function 'imshow'错误时,你可以通过检查图像路径、尺寸和文件的正确性,并确保你的OpenCV版本是最新的来解决这个问题。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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