From 2e076dc9357bb0507470f3262dcaf64543e75f22 Mon Sep 17 00:00:00 2001
From: ariotte <ariotte@PC-EII16.admr.insa>
Date: Thu, 21 Jun 2018 10:26:58 +0200
Subject: [PATCH] fixed bug with high value of quantization
---
app/Operations/QuantificationOp.cpp | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/app/Operations/QuantificationOp.cpp b/app/Operations/QuantificationOp.cpp
index 09da591..b841bb2 100644
--- a/app/Operations/QuantificationOp.cpp
+++ b/app/Operations/QuantificationOp.cpp
@@ -97,7 +97,8 @@ string checkOptimumQuantizier(const imagein::Image* image, Quantification * quan
som_lum += hist[i]*i;
nb_points += hist[i];
}
- baricenter = som_lum/nb_points;
+ if(nb_points != 0) baricenter = som_lum/nb_points;
+ else baricenter = ( quant->threshold(j) + quant->threshold(j-1) )/2;
centroid += abs( baricenter - quant->value(j) ) /( quant->threshold(j) - quant->threshold(j-1) ) * 100;
}
@@ -110,7 +111,8 @@ string checkOptimumQuantizier(const imagein::Image* image, Quantification * quan
som_lum += hist[i]*i;
nb_points += hist[i];
}
- baricenter = som_lum/nb_points;
+ if(nb_points != 0) baricenter = som_lum/nb_points;
+ else baricenter = (quant->threshold(0))/2;;
centroid = abs( baricenter - quant->value(0) ) /( quant->threshold(0) ) * 100;
som_lum = 0;
@@ -119,10 +121,10 @@ string checkOptimumQuantizier(const imagein::Image* image, Quantification * quan
som_lum += hist[i]*i;
nb_points += hist[i];
}
- baricenter = som_lum/nb_points;
+ if(nb_points != 0) baricenter = som_lum/nb_points;
+ else baricenter = 255 - quant->threshold(0)/2;
centroid += abs( baricenter - quant->value(1) ) / ( 255 - quant->threshold(0) ) * 100;
}
-
for(int i = 0; i<quant->nbThresholds(); i++){
valueCenter = ( quant->value(i) + quant->value(i+1) ) / 2 ;
@@ -192,7 +194,7 @@ void QuantificationOp::operator()(const imagein::Image* image, const std::map<co
outText(quantType);
outText(output_msg);
if(checkOptiQuant){
- outText("Respect des conditions du quantifieur optimal : ");
+ outText("Respect des proprietes du quantificateur optimal : ");
outText(optiQuant);
}
--
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