diff options
Diffstat (limited to '3176/CH2')
| -rw-r--r-- | 3176/CH2/EX2.12/Ex2_12.sce | 38 | ||||
| -rw-r--r-- | 3176/CH2/EX2.2/Ex2_2.sce | 28 | ||||
| -rw-r--r-- | 3176/CH2/EX2.3/Ex2_3.sce | 34 | ||||
| -rw-r--r-- | 3176/CH2/EX2.4/Ex2_4.sce | 39 | ||||
| -rw-r--r-- | 3176/CH2/EX2.5/Ex2_5.sce | 43 | ||||
| -rw-r--r-- | 3176/CH2/EX2.6/Ex2_6.sce | 37 | ||||
| -rw-r--r-- | 3176/CH2/EX2.7/Ex2_7.sce | 44 |
7 files changed, 263 insertions, 0 deletions
diff --git a/3176/CH2/EX2.12/Ex2_12.sce b/3176/CH2/EX2.12/Ex2_12.sce new file mode 100644 index 000000000..7e15ee1bb --- /dev/null +++ b/3176/CH2/EX2.12/Ex2_12.sce @@ -0,0 +1,38 @@ +//Ex2_12
+// Standard Deviation
+// 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).
+
+////////////////// Image Rotation /////////////////////
+gray1=imread("Ex2_12.tif");
+gray1=im2double(gray1); //Convert the data type into double range
+figure,ShowImage(gray1,'Gray Image');
+title('Original Image');
+gray2=imread("Ex2_12_1.tif");
+gray2=im2double(gray2); ///Convert the data type into double range
+figure,ShowImage(gray2,'Gray Image');
+title('Original Image');
+gray3=imread("Ex2_12_2.tif");
+gray3=im2double(gray3); //Convert the data type into double range
+figure,ShowImage(gray3,'Gray Image');
+title('Original Image');
+
+y=variance(gray1); // calculate variance
+disp('Variance of Image 1:')
+disp(y);
+y=variance(gray2); // calculate variance
+disp('Variance of Image 2:')
+disp(y);
+y=variance(gray3); // calculate variance
+disp('Variance of Image 3:')
+disp(y);
+
diff --git a/3176/CH2/EX2.2/Ex2_2.sce b/3176/CH2/EX2.2/Ex2_2.sce new file mode 100644 index 000000000..2f64d2ed9 --- /dev/null +++ b/3176/CH2/EX2.2/Ex2_2.sce @@ -0,0 +1,28 @@ +//Ex2_2
+//Illustration of the Effects of Reducing Image Spatial Resolution
+// 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).
+gray=imread("Ex2_2.tif");
+figure,ShowImage(gray,'Gray Image');
+title('Original Image (1250 DPI)');
+[M,N]=size(gray);
+a1=imresize(gray,[443 337],'nearest');
+figure,ShowImage(a1,'Resize Image');
+title('Resize Image (300 DPI)');
+
+a2=imresize(gray,[886 675],'nearest');
+figure,ShowImage(a2,'Resize Image');
+title('Resize Image (150 DPI)');
+
+a3=imresize(gray,[213 162],'nearest');
+figure,ShowImage(a3,'Resize Image');
+title('Resize Image (72 DPI)');
diff --git a/3176/CH2/EX2.3/Ex2_3.sce b/3176/CH2/EX2.3/Ex2_3.sce new file mode 100644 index 000000000..2af90885b --- /dev/null +++ b/3176/CH2/EX2.3/Ex2_3.sce @@ -0,0 +1,34 @@ +//Ex2_3
+//Typical Effects of Varying the Number of Intensity Levels in a digital Image
+// 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).
+gray=rgb2gray(imread("Ex2_3.png"));
+figure,ShowImage(gray,'Gray Image');
+title('Original Image');
+[nr nc]=size(gray);
+b=gray;
+level=[128 64 32 16 8 4 2];
+for x=1:length(level)
+k=level(x);
+for y=1:k
+for i=1:nr
+ for j=1:nc
+ if(gray(i,j)>=((255/k)*(y-1)) & gray(i,j)<((255/k)*y))
+ b(i,j)=((255/k)*(y-1))+((255/k)/2);
+ end
+ end
+end
+end
+figure,ShowImage(b,'OutPut Image');
+title('Image With Less Number of Gray Level');
+end
+
diff --git a/3176/CH2/EX2.4/Ex2_4.sce b/3176/CH2/EX2.4/Ex2_4.sce new file mode 100644 index 000000000..17dee6d04 --- /dev/null +++ b/3176/CH2/EX2.4/Ex2_4.sce @@ -0,0 +1,39 @@ +//Ex2_4
+//Comparision of Interpolation Approaches for Image Shrinking and Zooming
+// 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).
+gray=imread("Ex2_4.tif");
+figure,ShowImage(gray,'Gray Image');
+title('Original Image (1250 DPI)');
+[M,N]=size(gray);
+
+a2=imresize(gray,[213 162],'nearest'); //nearest neigubour Interpolation
+figure,ShowImage(a2,'Resize Image');
+title('Resize Image (72 DPI) nearest neigubour Interpolation');
+a2=imresize(gray,[213 162],'bilinear'); ///bilinear Interpolation
+figure,ShowImage(a2,'Resize Image');
+title('Resize Image (72 DPI) with bilinear Interpolation');
+a2=imresize(gray,[213 162],'bicubic'); //bicubic Interpolation
+figure,ShowImage(a2,'Resize Image');
+title('Resize Image (72 DPI) with bicubic Interpolation');
+
+a3=imresize(gray,[886 675],'nearest'); //nearest neigubour Interpolation
+figure,ShowImage(a3,'Resize Image');
+title('Resize Image (150 DPI) with nearest neigubour Interpolation');
+a3=imresize(gray,[886 675],'nearest'); ///bilinear Interpolation
+figure,ShowImage(a3,'Resize Image');
+title('Resize Image (150 DPI) with bilinear Interpolation');
+a3=imresize(gray,[886 675],'nearest'); //bicubic Interpolation
+figure,ShowImage(a3,'Resize Image');
+title('Resize Image (150 DPI) with bicubic Interpolation');
+
+
diff --git a/3176/CH2/EX2.5/Ex2_5.sce b/3176/CH2/EX2.5/Ex2_5.sce new file mode 100644 index 000000000..326df7f35 --- /dev/null +++ b/3176/CH2/EX2.5/Ex2_5.sce @@ -0,0 +1,43 @@ +//Ex2_5
+//Addition of Noisy Images for Noise Reduction
+// 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).
+gray=imread("Ex2_5.tif");
+//gray=rgb2gray(a);
+gray=im2double(gray);
+
+figure,ShowImage(gray,'Gray Image');
+title('Original Image');
+[nr nc]=size(gray);
+noise_image=gray;
+
+out_image=double(zeros(nr,nc));
+level=[5 10 20 50 100];
+for i=1:length(level)
+No=level(i);
+disp(No);
+for k=1:No
+ noisy_image=imnoise(noise_image,'gaussian',0,0.02);
+// figure,ShowImage(noisy_image,'Image corrupted by salt & pepper noise');//ShowImage() is used to sho w image, figure is command to view images in separate window.
+// title('Image corrupted by Gaussian noise');//title() is used for providing a title to an image.
+// disp(size(noise_image));
+ out_image=imadd(out_image,noisy_image);
+end
+out_image=out_image/No;
+out_image=mat2gray(out_image);
+
+figure,ShowImage(out_image,'Image Recoverd from the Noise');//ShowImage() is used to show image, figure is command to view images in separate window.
+ title('Image Recoverd from the Noise');//title() is used for providing a title to an image.
+//Recoverd_Image=0.5*out_image.^0.15;//Gamma Transformation
+//figure,ShowImage(Recoverd_Image,'Recoverd Image after Gamma Transormation');//ShowImage() is used to show image, figure is command to view images in separate window.
+//title('Image Recoverd from the Noise');//title() is used for providing a title to an image.
+end
diff --git a/3176/CH2/EX2.6/Ex2_6.sce b/3176/CH2/EX2.6/Ex2_6.sce new file mode 100644 index 000000000..8eb91a2b2 --- /dev/null +++ b/3176/CH2/EX2.6/Ex2_6.sce @@ -0,0 +1,37 @@ +//Ex2_6
+//Image Subtraction for Enhancing differences
+// 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).
+gray=imread("Ex2_6.tif");
+gray=imresize(gray,0.25,'bicubic'); //Resize the Image with bicubic Interpolation
+figure,ShowImage(gray,'Gray Image');
+title('Original Image');
+[nr nc]=size(gray);
+for i=1:8
+ c(:,:,i)=mtlb_logical(bitget(gray,9-i)); // Separate bit Planes from the Gray Scale Image
+
+end
+c(:,:,8)=zeros(nr,nc); // Set Zeros to LSB
+//c(:,:,7)=zeros(nr,nc); // Set Zeros to LSB
+
+for i=1:nr
+ for j=1:nc
+ mask(i,j)=(2^7)*c(i,j,1)+(2^6)*c(i,j,2)+(2^5)*c(i,j,3)+(2^4)*c(i,j,4)+(2^3)*c(i,j,5)+(2^2)*c(i,j,6)+(2^1)*c(i,j,7)+(2^0)*c(i,j,8);
+ end
+end
+figure;ShowImage(mask,'Modified Image');
+title('Image Obtained by Setting Zeros to LSB ');
+mask=uint8(mask); //Convert the Image to uint8 Data Type
+Diff_image=imsubtract(gray,mask); //Subtract two Images
+Diff_image=mat2gray(Diff_image);
+figure;ShowImage(Diff_image,'Modified Image');
+title('Difference of two images');
diff --git a/3176/CH2/EX2.7/Ex2_7.sce b/3176/CH2/EX2.7/Ex2_7.sce new file mode 100644 index 000000000..96eb47f12 --- /dev/null +++ b/3176/CH2/EX2.7/Ex2_7.sce @@ -0,0 +1,44 @@ +//Ex2_7
+// Image Multiplication for Shadding Correction.
+// 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).
+
+////////////////// Image Division /////////////////////
+gray=imread("Ex2_7.tif");
+shade=imread("Ex2_7_1.tif");
+gray=im2double(imresize(gray,0.5,'bicubic')); //Resize the Image with Bicubic Interpolation
+shade=im2double(imresize(shade,0.5,'bicubic')); //Resize the Image with Bicubic Interpolation
+figure,ShowImage(gray,'Gray Image');
+title('Original Image');
+figure,ShowImage(shade,'Sahde Image');
+title('Shading Pattern Image');
+[nr nc]=size(gray);
+Enhance_image=imdivide(gray,shade);
+Enhance_image=mat2gray(Enhance_image);
+figure,ShowImage(Enhance_image,'Enhance Image');
+title('Enhance Image after Shading Correction');
+
+////////////////// Image Multiplication /////////////////////
+gray=imread("Ex2_7_2.tif");
+mask=imread("Ex2_7_3.tif");
+gray=im2double(imresize(gray,0.5,'bicubic')); //Resize the Image with Bicubic Interpolation
+mask=im2double(imresize(mask,0.5,'bicubic')); //Resize the Image with Bicubic Interpolation
+figure,ShowImage(gray,'Gray Image');
+title('Original Image');
+figure,ShowImage(mask,'mask Image');
+title('mask Pattern Image(ROI)');
+[nr nc]=size(gray);
+Enhance_image=immultiply(gray,mask);
+Enhance_image=mat2gray(Enhance_image);
+figure,ShowImage(Enhance_image,'Enhance Image');
+title('ROI Selection');
+
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