Commit c4717db

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Edge Detection

Sobel & Prewitt Operations

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Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,28 @@`
	`1`	`+%Prewitt`
	`2`	`+`
	`3`	`+clc;`
	`4`	`+clear all;`
	`5`	`+a=imread('circuit.tif');`
	`6`	`+[x y]=size(a);`
	`7`	`+w=[-1 0 1; -1 0 1; -1 0 1];`
	`8`	`+w1=[-1 -1 -1; 0 0 0; 1 1 1];`
	`9`	`+%BW2 = edge(a,'Prewitt');`
	`10`	`+a=double(a);`
	`11`	`+for m=2:1:x-1`
	`12`	`+ for n=2:1:y-1`
	`13`	`+ r(m,n)=w(1)a(m-1,n-1)+ w(2)a(m,n-1)+w(3)a(m+1,n-1)+w(4)a(m-1,n)+w(5)a(m,n)+w(6)a(m+1,n)+w(7)a(m-1,n+1)+w(8)a(m,n+1)+w(9)*a(m+1,n+1);`
	`14`	`+ r1(m,n)=w1(1)a(m-1,n-1)+ w1(2)a(m,n-1)+w1(3)a(m+1,n-1)+w1(4)a(m-1,n)+w1(5)a(m,n)+w1(6)a(m+1,n)+w1(7)a(m-1,n+1)+w1(8)a(m,n+1)+w1(9)*a(m+1,n+1);`
	`15`	`+ end`
	`16`	`+end`
	`17`	`+z=r+r1;`
	`18`	`+`
	`19`	`+%for m=1:1:x`
	`20`	`+ % for n=1:1:y`
	`21`	`+subplot(1,4,1);`
	`22`	`+imshow(uint8(a));`
	`23`	`+subplot(1,4,2);`
	`24`	`+imshow(uint8(r));`
	`25`	`+subplot(1,4,3);`
	`26`	`+imshow(uint8(r1));`
	`27`	`+subplot(1,4,4);`
	`28`	`+imshow(uint8(z));`

50.2 KB

Lines changed: 28 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,28 @@`
	`1`	`+%Sobel`
	`2`	`+`
	`3`	`+clc;`
	`4`	`+clear all;`
	`5`	`+a=imread('circuit.tif');`
	`6`	`+[x y]=size(a);`
	`7`	`+w=[-1 0 1; -2 0 2; -1 0 1];`
	`8`	`+w1=[-1 -2 -1; 0 0 0; 1 2 1];`
	`9`	`+%BW2 = edge(a,'Prewitt');`
	`10`	`+a=double(a);`
	`11`	`+for m=2:1:x-1`
	`12`	`+ for n=2:1:y-1`
	`13`	`+ r(m,n)=w(1)a(m-1,n-1)+ w(2)a(m,n-1)+w(3)a(m+1,n-1)+w(4)a(m-1,n)+w(5)a(m,n)+w(6)a(m+1,n)+w(7)a(m-1,n+1)+w(8)a(m,n+1)+w(9)*a(m+1,n+1);`
	`14`	`+ r1(m,n)=w1(1)a(m-1,n-1)+ w1(2)a(m,n-1)+w1(3)a(m+1,n-1)+w1(4)a(m-1,n)+w1(5)a(m,n)+w1(6)a(m+1,n)+w1(7)a(m-1,n+1)+w1(8)a(m,n+1)+w1(9)*a(m+1,n+1);`
	`15`	`+ end`
	`16`	`+end`
	`17`	`+z=r+r1;`
	`18`	`+`
	`19`	`+%for m=1:1:x`
	`20`	`+ % for n=1:1:y`
	`21`	`+subplot(1,4,1);`
	`22`	`+imshow(uint8(a));`
	`23`	`+subplot(1,4,2);`
	`24`	`+imshow(uint8(r));`
	`25`	`+subplot(1,4,3);`
	`26`	`+imshow(uint8(r1));`
	`27`	`+subplot(1,4,4);`
	`28`	`+imshow(uint8(z));`

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