Function mindspore::dataset::SubStractMeanNormalize
Defined in File image_process.h
Function Documentation
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bool mindspore::dataset::SubStractMeanNormalize(const LiteMat &src, LiteMat &dst, const std::vector<float> &mean, const std::vector<float> &std)
normalize image, currently the supports data type is float.
- Parameters
src – [in] Input image data.
dst – [in] Output image data.
mean – [in] Mean of the data set.
std – [in] Norm of the data set.
- Returns
Return true if transform successfully.
样例/* Assume p_rgb is a pointer that points to an image with shape (width, height, channel) */ LiteMat lite_mat_src(width, height, channel, (void *)p_rgb, LDataType::UINT8); LiteMat lite_mat_src2; ConvertTo(lite_mat_src, lite_mat_src2); LiteMat lite_mat_dst; /* Normalize */ std::vector<float> means = {0.485, 0.456, 0.406}; std::vector<float> stds = {0.229, 0.224, 0.225}; SubStractMeanNormalize(lite_mat_src2, lite_mat_dst, means, stds); std::cout << lite_mat_dst.width_ << " " << lite_mat_dst.height_ << " " << lite_mat_dst.channel_ << std::endl;