diff options
| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /3176/CH6/EX6.9/Ex6_9.sce | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '3176/CH6/EX6.9/Ex6_9.sce')
| -rw-r--r-- | 3176/CH6/EX6.9/Ex6_9.sce | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/3176/CH6/EX6.9/Ex6_9.sce b/3176/CH6/EX6.9/Ex6_9.sce new file mode 100644 index 000000000..d02619162 --- /dev/null +++ b/3176/CH6/EX6.9/Ex6_9.sce @@ -0,0 +1,81 @@ +//Ex6_9 :
+//Tonal Transformations.
+
+// Version : Scilab 5.4.1
+// Operating System : Window-xp, Window-7
+//Toolbox: Image Processing Design 8.3.1-1
+//Toolbox: SIVP 0.5.3.1-2
+//Reference book name : Digital Image Processing
+//book author: Rafael C. Gonzalez and Richard E. Woods
+
+clc;
+close;
+clear;
+xdel(winsid())//to close all currently open figure(s).
+
+////////////////// Tonal Correction for the Flat Image ////////////////////////
+Color=imread("Ex6_9_1.tif");
+Color=imresize(Color,0.5);
+[nr nc]=size(Color);
+figure,ShowColorImage(Color,'Gray Image');
+title('Original Image');
+D=0:256;
+D0=155;// Cut-off Number
+n=2; // Order of Butter Wirth Approximation
+H1 = 1-ones(1,1)./(1+(D./D0).^(2*n)); // Transfer Function (Design from the Butterworth Approximation)
+figure,plot(H1);
+title('RGB Intensity Transformation Function');
+Slice_Image=[];
+for i=1:nr
+ for j=1:nc
+ Slice_Image(i,j,1)=H1(uint16(Color(i,j,1))+1);
+ Slice_Image(i,j,2)=H1(uint16(Color(i,j,2))+1);
+ Slice_Image(i,j,3)=H1(uint16(Color(i,j,3))+1);
+ end
+end
+ShowColorImage(Slice_Image,'RGB Image');
+title('Tonal Corrected image');
+
+////////////////// Tonal Correction for the Light Image ////////////////////////
+Color=imread("Ex6_9_2.tif");
+Color=imresize(Color,0.5);
+[nr nc]=size(Color);
+figure,ShowColorImage(Color,'Gray Image');
+title('Original Image');
+D=0:1/256:1;
+H2=1*D^3.0; // Transfer Function (Design from the Gamma Funcetion).
+figure,plot(H2);
+title('RGB Intensity Transformation Function');
+Slice_Image=[];
+for i=1:nr
+ for j=1:nc
+ Slice_Image(i,j,1)=H2(uint16(Color(i,j,1))+1);
+ Slice_Image(i,j,2)=H2(uint16(Color(i,j,2))+1);
+ Slice_Image(i,j,3)=H2(uint16(Color(i,j,3))+1);
+ end
+end
+ShowColorImage(Slice_Image,'RGB Image');
+title('Tonal Corrected image');
+
+////////////////// Tonal Correction for the Dark Image ////////////////////////
+Color=imread("Ex6_9_3.tif");
+Color=imresize(Color,0.5);
+[nr nc]=size(Color);
+figure,ShowColorImage(Color,'Gray Image');
+title('Original Image');
+D=0:1/256:1;
+H3=1*D^0.35;
+figure,plot(H3);
+title('RGB Intensity Transformation Function');
+Slice_Image=[];
+for i=1:nr
+ for j=1:nc
+ Slice_Image(i,j,1)=H3(uint16(Color(i,j,1))+1);
+ Slice_Image(i,j,2)=H3(uint16(Color(i,j,2))+1);
+ Slice_Image(i,j,3)=H3(uint16(Color(i,j,3))+1);
+ end
+end
+ShowColorImage(Slice_Image,'RGB Image');
+title('Tonal Corrected image');
+
+
|