Image processing method, cell defect detection method, device and equipment

The invention provides an image processing method, and a cell defect detection method, device and equipment, and relates to the technical field of image processing. Nonlinear stretching processing is performed on the cell region image of the cell to obtain the stretched image, so that the contrast between the levels of the cathode and the anode of the cell in the cell region image can be improved after the processing, the imaging effect is improved, an exponential function is adopted by a nonlinear stretching formula, the gray interval in the cell region image can be expanded, and the image quality is improved. According to the method, detail features are highlighted, the stretching effect can be improved, images with higher definition can be provided for subsequent defect detection of the battery cell, and the accuracy of the defect detection of the battery cell is improved. 本申请提供一种图像处理方法、电芯缺陷检测方法、装置及设备，涉及图像处理技术领域。通过对电芯的电芯区域图像进行非线性拉伸处理，得到拉伸图像，这样处理后可以提升电芯区域图像中电芯的阴阳极的各个层级之间的对比度，提高成像效果，并且非线性拉伸公式采用指数函数，可以扩大电芯区域图