cpp:4152: error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize'
时间: 2024-06-16 18:06:19 浏览: 18
这个错误是OpenCV库中的一个断言错误,出现在调用cv::resize函数时。错误信息中的"(-215:Assertion failed) !ssize.empty()"表示输入图像的尺寸为空。这可能是由于以下原因导致的:
1. 输入图像为空:请确保你传递给cv::resize函数的输入图像不为空。你可以检查图像是否成功加载或者是否正确传递给了resize函数。
2. 图像尺寸为0:如果输入图像的宽度或高度为0,就会出现这个错误。你可以检查图像的尺寸是否正确,并确保它们大于0。
3. 图像通道数错误:cv::resize函数默认情况下只能处理单通道或三通道的图像。如果你的图像通道数不是1或3,就会出现这个错误。你可以尝试将图像转换为单通道或三通道,然后再调用resize函数。
如果你能提供更多的代码和上下文信息,我可以给出更具体的帮助。
相关问题
运行报错error: (-215:Assertion failed) !ssize.empty() in function ‘cv::resize‘
在车牌检测识别过程中,遇到报错"error: (-215:Assertion failed) !ssize.empty() in function ‘cv::resize‘"。这个错误是由于在调用cv2.resize函数时,输入图像尺寸为空所引起的。根据引用和引用的内容,可以确定这个错误是由于图像的尺寸大小不合适导致的。为了解决这个问题,可以根据引用中提供的修改后的代码进行调整。在代码中,通过对图像尺寸进行判断,如果图像高度大于36像素,则将图像尺寸调整为(136, 36 * 2),否则将图像尺寸调整为(136, 36)。这样可以确保输入图像的尺寸不为空,避免了报错。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [cpp:3720: error: (-215:Assertion failed) !ssize.empty() in function 'resize' 错误解决](https://blog.csdn.net/WellTung_666/article/details/105551802)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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resize.cpp:4062: error: (-215:Assertion failed) !ssize.empty() in function 'cv::resize'
This error occurs when the input image size is empty or NULL. The assertion "ssize.empty()" checks whether the input image size is valid or not. If it is empty, the assertion fails and the program terminates with this error message.
To fix this error, ensure that the input image is not empty or NULL before passing it to the cv::resize() function. You can check the size of the input image using the cv::Size() function and validate it before calling the resize function.
Here's an example code snippet that demonstrates how to validate the input image size before resizing it:
```
cv::Mat inputImage = cv::imread("input.jpg");
if (!inputImage.empty()) {
cv::Size imageSize = inputImage.size();
if (imageSize.width > 0 && imageSize.height > 0) {
cv::Mat outputImage;
cv::resize(inputImage, outputImage, cv::Size(640, 480));
// do further processing on the resized image
}
else {
std::cerr << "Error: Input image size is invalid" << std::endl;
}
}
else {
std::cerr << "Error: Failed to read input image" << std::endl;
}
```
In this example, we first load the input image using the cv::imread() function. We then check if the input image is empty or not using the empty() function. If the input image is not empty, we check its size using the size() function. If the size is valid, we resize the image using the cv::resize() function. If the size is invalid, we print an error message.
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