CODEWITHSUNDEEP
imagematlabmatrixhsv
user2804881
user2804881

Reputation: 107

how to iterate through one column in matrix?

I read an image in using I = imread('myimg.jpg'), then did hsv = rgb2hsv(I) but now I'm stuck in doing the following:

"Go through each element of HSV(i,j,3) [i and j are like for loop counters] and scale the value from 0-1 to 1-256 and use that value as the index into your histogram."

I'm new to matlab so I'm very unsure as to how to do this. Can anyone help me out?

Thanks

Upvotes: 3

Views: 67

Answers (1)

Franck Dernoncourt
Franck Dernoncourt

Reputation: 83457

Use the colon operator:

I = imread('myimg.jpg');
hsv = rgb2hsv(I);
scale_factor = 255
result = hsv(:, :, 3) * scale_factor + 1

Upvotes: 3

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