Some question about function "SetMean " in ssd_detect.cpp

[zhanglaplace]

thanks for your source code, that is great.
is some error in function setmean;
the net input std::vectorcv::Mat channels;

float* data = mean_blob.mutable_cpu_data();
for (int i = 0; i < num_channels_; ++i) {
/* Extract an individual channel. */
cv::Mat channel(mean_blob.height(), mean_blob.width(), CV_32FC1, data);
channels.push_back(channel);
data += mean_blob.height() * mean_blob.width();
}

/* Merge the separate channels into a single image. */
cv::Mat mean;
cv::merge(channels, mean);blob shouble transform from the opencv Mat data,.

When we merge the channels to mean, why do we also request the entire image of mean，（channel_mean = cv::mean(mean_)）?

[llmettyll]

In my case, I set a mean value manually in the code, when running detection successfully

DEFINE_string(mean_value, "85", // I used gray image (1 channel)
"If specified, can be one value or can be same as image channels"
" - would subtract from the corresponding channel). Separated by ','."
"Either mean_file or mean_value should be provided, not both.");

If you set "mean_value", when you reBuild "ssd_detect" project, you don't need to meet those code line.