how to obtain vertical and horizontal histogram of an image?

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neda
neda 2013-5-20
评论： Image Analyst 2018-10-6
hi I have an image of face that I devided it into 3 RoIs and now I want to apply analysis of vertical histogram(showing the intensity differences between successive rows,pixel-wise) and horizontal histogram(showing the intensity differences between successive columns,pixel-wise). if anyone know how we can obtain the vertical and horizontal histogram of an image?

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采纳的回答

Image Analyst
Image Analyst 2013-5-20
What about
[countV, binValuesV] = hist(diff(yourImage, 1, 1))
[countH, binValuesH] = hist(diff(yourImage, 1, 2))
  2 个评论
Sudipto Chaki
Sudipto Chaki 2018-10-6
I need to draw horizontal and vertical histogram of my image to identify the rectangular ROI region. I used your function. But, it's showing error. What to do?

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更多回答（2 个）

Iain
Iain 2013-5-20
plot(mean(image))
plot(mean(image,2))
I think its what you're asking for, but its not really a histogram though.
emad shokrallah
emad shokrallah 2018-2-21
what is the syntax of bvertical histogram ?

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