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スキャン画像の面内むらを補正
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/** \file shading.cpp | |
* \author unot | |
* \date 2013/08/08 | |
* */ | |
#include <iostream> | |
#include <string> | |
#include <opencv2/imgproc/imgproc.hpp> | |
#include <opencv2/highgui/highgui.hpp> | |
int main(int argc, char const *argv[]) | |
{ | |
if(argc==1) { | |
std::cout << "Usage: shading input_img" << std::endl; | |
exit(0); | |
} | |
cv::Mat src_img = cv::imread(argv[1]); | |
if(src_img.empty()) { | |
std::cerr << "Image Load Failed!" << std::endl; | |
return -1; | |
} | |
static const std::string fileName_ext = argv[1]; | |
static std::string fileName(fileName_ext, 0, fileName_ext.size()-4); | |
static const std::string empty_string; | |
static std::ostringstream os; | |
cv::Mat blurred, divided; | |
cv::GaussianBlur(src_img, blurred, cv::Size(), 60, 0); | |
// cv::imwrite("blurred.jpg", blurred); | |
src_img.convertTo(src_img, CV_32F); | |
blurred.convertTo(blurred, CV_32F); | |
divided = src_img * 255.0 / blurred; | |
divided.convertTo(divided, CV_8U); | |
cv::normalize(divided, divided, 0, 255, cv::NORM_MINMAX); | |
cv::erode(divided, divided, cv::Mat(), cv::Point(-1,-1), 1); | |
os << fileName << "_shaded.jpg"; | |
cv::imwrite(os.str(), divided); | |
return 0; | |
} |
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