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Add BIMEF: A Bio-Inspired Multi-Exposure Fusion Framework for Low-light Image Enhancement.

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This commit is contained in:
catree
2020-03-07 01:51:19 +01:00
parent 698f805ce7
commit a59932b52c
8 changed files with 803 additions and 27 deletions
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112
modules/intensity_transform/samples/intensity_transform.cpp
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@@ -9,31 +9,115 @@ using namespace std;
using namespace cv;
using namespace cv::intensity_transform;
namespace
{
static std::string keys =
"{ help h | | Print help message. }"
"{ input i | | Path to the input image. }";
// global variables
Mat g_image;
int g_gamma = 40;
const int g_gammaMax = 500;
Mat g_imgGamma;
const std::string g_gammaWinName = "Gamma Correction";
Mat g_contrastStretch;
int g_r1 = 70;
int g_s1 = 15;
int g_r2 = 120;
int g_s2 = 240;
const std::string g_contrastWinName = "Contrast Stretching";
Mat g_imgBIMEF;
int g_mu = 50;
const int g_muMax = 100;
const std::string g_BIMEFWinName = "BIMEF";
static void onTrackbarGamma(int, void*)
{
float gamma = g_gamma / 100.0f;
gammaCorrection(g_image, g_imgGamma, gamma);
imshow(g_gammaWinName, g_imgGamma);
}
static void onTrackbarContrastR1(int, void*)
{
contrastStretching(g_image, g_contrastStretch, g_r1, g_s1, g_r2, g_s2);
imshow("Contrast Stretching", g_contrastStretch);
}
static void onTrackbarContrastS1(int, void*)
{
contrastStretching(g_image, g_contrastStretch, g_r1, g_s1, g_r2, g_s2);
imshow("Contrast Stretching", g_contrastStretch);
}
static void onTrackbarContrastR2(int, void*)
{
contrastStretching(g_image, g_contrastStretch, g_r1, g_s1, g_r2, g_s2);
imshow("Contrast Stretching", g_contrastStretch);
}
static void onTrackbarContrastS2(int, void*)
{
contrastStretching(g_image, g_contrastStretch, g_r1, g_s1, g_r2, g_s2);
imshow("Contrast Stretching", g_contrastStretch);
}
static void onTrackbarBIMEF(int, void*)
{
float mu = g_mu / 100.0f;
BIMEF(g_image, g_imgBIMEF, mu);
imshow(g_BIMEFWinName, g_imgBIMEF);
}
}
int main(int argc, char **argv)
{
if (argc != 2)
CommandLineParser parser(argc, argv, keys);
const std::string inputFilename = parser.get<String>("input");
parser.about("Use this script to apply intensity transformation on an input image.");
if (parser.has("help") || inputFilename.empty())
{
cerr << "Must input the path of the input image. Ex: intensity_transform image.jpg" << endl;
return -1;
parser.printMessage();
return 0;
}
// Read input image
Mat image = imread(argv[1]);
g_image = imread(inputFilename);
// Create trackbars
namedWindow(g_gammaWinName);
createTrackbar("Gamma value", g_gammaWinName, &g_gamma, g_gammaMax, onTrackbarGamma);
namedWindow(g_contrastWinName);
createTrackbar("Contrast R1", g_contrastWinName, &g_r1, 256, onTrackbarContrastR1);
createTrackbar("Contrast S1", g_contrastWinName, &g_s1, 256, onTrackbarContrastS1);
createTrackbar("Contrast R2", g_contrastWinName, &g_r2, 256, onTrackbarContrastR2);
createTrackbar("Contrast S2", g_contrastWinName, &g_s2, 256, onTrackbarContrastS2);
namedWindow(g_BIMEFWinName);
createTrackbar("Enhancement ratio mu", g_BIMEFWinName, &g_mu, g_muMax, onTrackbarBIMEF);
// Apply intensity transformations
Mat imgGamma, imgAutoscaled, imgLog, contrastStretch;
gammaCorrection(image, imgGamma, (float)(0.4));
autoscaling(image, imgAutoscaled);
logTransform(image, imgLog);
contrastStretching(image, contrastStretch, 70, 15, 120, 240);
Mat imgAutoscaled, imgLog;
autoscaling(g_image, imgAutoscaled);
gammaCorrection(g_image, g_imgGamma, g_gamma/100.0f);
logTransform(g_image, imgLog);
contrastStretching(g_image, g_contrastStretch, g_r1, g_s1, g_r2, g_s2);
BIMEF(g_image, g_imgBIMEF, g_mu / 100.0f);
// Display intensity transformation results
imshow("Original Image", image);
imshow("Original Image", g_image);
imshow("Autoscale", imgAutoscaled);
imshow("Gamma Correction", imgGamma);
imshow(g_gammaWinName, g_imgGamma);
imshow("Log Transformation", imgLog);
imshow("Contrast Stretching", contrastStretch);
waitKey(0);
imshow(g_contrastWinName, g_contrastStretch);
imshow(g_BIMEFWinName, g_imgBIMEF);
waitKey(0);
return 0;
}
}