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HW5 Prof Sln

# HW5 Prof Sln - o Then use the formula on page 34 of...

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5.1 Follow the steps carefully: o Unzip thefile “matlab_files.zip” and save all files in your working directory with images. o Use your camera to take a color picture and save it in JPEG format. o Then open the picture in Matlab use the “readjpg” function: > IMG=readjpg(‘jpeg_file_name.jpg’); > size(IMG) o When the image is stored in the 3-D matrix “IMG” with size of (x, y, 3) where x, y are the sizes of your picture (obtained from the “size” function), type > r=zeros(x,y); g=zeros(x,y); b=zeros(x,y); % initialization > r=IMG(:,:,1); g=IMG(:,:,2); b=IMG(:,:,3);

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Unformatted text preview: o Then use the formula on page 34 of “CpE462-6.ppt” to create a new matrix Y which is the luminance component from “r”, “g” and “b” matrices. Print out your Matlab procedures (using “diary” function). > Y=r*0.299+g*0.587+b*0.114; OR > for i=1:x, % x should be the number of rows > for j=1:y, % y should be the number of columns > Y(i,j)=r(i,j)*0.299+g(i,j)*0.587+b(i,j)*0.114; > end, > end, o Use “dispimg” function to display Y, and print out this gray level image. > dispimg(Y); OR > imshow(Y/256,256);...
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HW5 Prof Sln - o Then use the formula on page 34 of...

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