From 936c1f4f9e59b4e2b1bfe66db66b2b492835daf1 Mon Sep 17 00:00:00 2001
From: ariotte <ariotte@PC-EII16.admr.insa>
Date: Mon, 2 Jul 2018 13:57:44 +0200
Subject: [PATCH] prepared algorithm for custom pseudo color
---
app/Operations/PseudoColorOp.cpp | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/app/Operations/PseudoColorOp.cpp b/app/Operations/PseudoColorOp.cpp
index feb5b85..6a1eaf4 100644
--- a/app/Operations/PseudoColorOp.cpp
+++ b/app/Operations/PseudoColorOp.cpp
@@ -33,16 +33,27 @@ bool PseudoColorOp::needCurrentImg() const {
return true;
}
+static int getLinearHue(int value, int nhue){
+ return floor(value * nhue / 255);
+}
+
void PseudoColorOp::operator()(const imagein::Image* image, const std::map<const imagein::Image*, std::string>&) {
- GrayscaleImage* tmpImg = Converter<GrayscaleImage>::convert(*image);
- Image* resImg = new Image(tmpImg->getWidth(), tmpImg->getHeight(), 3);
+ GrayscaleImage* tmpImg = Converter<GrayscaleImage>::convert(*image);
+ Image* resImg = new Image(tmpImg->getWidth(), tmpImg->getHeight(), 3);
+
+ int nhue = 255; // changer cette valeur en fonction de la fenêtre de dialog
+
+ int (*getHue)(int a, int b);
+
+ getHue = getLinearHue;
+
for(unsigned int j = 0; j < tmpImg->getHeight(); ++j) {
for(unsigned int i = 0; i < tmpImg->getWidth(); ++i) {
Image::depth_t value = tmpImg->getPixel(i, j);
- const int nhue = 256;
- const int ngrad = ceil(256. / (double)nhue);
- const int hue = floor(value * nhue / 256); /* € [0, nhue[ */
- const int grad = value - ceil((double)hue * 256. / (double)nhue); /* € [0, ngrad[ */
+
+ const int ngrad = ceil(255. / (double)nhue);
+ const int hue = getHue(value, nhue); /* € [0, nhue[ */
+ const int grad = value - ceil((double)hue * 255 / (double)nhue); /* € [0, ngrad[ */
QColor color = QColor::fromHsl(300 - hue * 300 / nhue, 255, (grad + 1) * 255 / (ngrad + 1));
resImg->setPixel(i, j, 0, color.red());
resImg->setPixel(i, j, 1, color.green());
--
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