# Image Processing homework, Heeeelp

Discussion in 'Homework Help' started by Farah_altufaili, Nov 1, 2014.

1. ### Farah_altufaili Thread Starter New Member

Nov 1, 2014
3
0
Hi
I have this homeworks problem I don't know how to solve them , would you help me please ??
Problems:
3.1. Show that in the XYZ model the white is represented by the triple (1,1,1).
3.2. Consider the YIQ model. Show that in a grayscale image, where R=G=B,
the chrominance components I and Q are null.
3.3. Consider the HSV model. Show that in the simplest form of HSV transformation,
the hue (H) become undefined when the saturation S is null.
3.4. Compute in HSV model, the coordinates of cyan, magenta and yellow.
3.5. Repeat Problem 3.4 for the HSB model.

2. ### WBahn Moderator

Mar 31, 2012
20,226
5,750
Would you show YOUR efforts to solve YOUR homework?

3. ### bertus Administrator

Apr 5, 2008
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4. ### Farah_altufaili Thread Starter New Member

Nov 1, 2014
3
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actually I solve the first and second and try to solve the other but I couldn't.

5. ### WBahn Moderator

Mar 31, 2012
20,226
5,750
That doesn't count as SHOWING your work. We need to see what you have done and where you are going right and where you are going wrong in order to best help you. We are NOT just going to solve it for you and give you the solutions -- that won't help you learn the subject.

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6. ### Papabravo Expert

Feb 24, 2006
11,131
2,173
This one might also be helpful

http://en.wikipedia.org/wiki/HSL_and_HSV

Hint: In arithmetic the big undefined operation is division by zero. Can you find a reference to division by 0 in the article?

7. ### Farah_altufaili Thread Starter New Member

Nov 1, 2014
3
0
Ok.
problem 3.3
I use this equations

I assume that S=0 and put it in the equation, but i cant find the relation between S and H.
Note: I am just start study image processing.

8. ### WBahn Moderator

Mar 31, 2012
20,226
5,750
So, how have you tried to use those equations to answer the question?

What does it mean for H to be "undefined"? What is required for that to happen?