How can I display the intensity of the pixel in matrix

Hi, I am new to Matlab. I would like to display the intensity of 8 X 8 pixel jpeg and bitmap in matrix. Can someone help me. It is a color pic. Thanks.

[Walter Roberson]

In this context, what is "intensity" ?

I am not clear as to whether the jpeg is intended to be different from the bitmap? If it is, then how do the two interact?

Answer 1

[Image Analyst]

See this snippet:

% Let them mouse around the current axes and see the values.
hPixelInfo = impixelinfo();
set(hPixelInfo, 'Unit', 'Normalized', 'Position', [.81 .89 .2 .1]);

Adjust the position as necessary to position your readout wherever you want it.

[Image Analyst]

It gives x,y and either gray level or RGB values depending on whether the image is gray scale or color.

Answer 2

[Allan]

This is an example of I found online for a 8 X 8 pixel: 5 176 193 168 168 170 167 165 6 176 158 172 162 177 168 151 5 167 172 232 158 61 145 214 33 179 169 174 5 5 135 178 8 104 180 178 172 197 188 169 63 5 102 101 160 142 133 139 51 47 63 5 180 191 165 5 49 53 43 5 184 170 168 74 Can you explain how can I retrieve this type of info from a pic? Thanks.

Answer 3

[Allan]

 5 176 193 168 168 170 167 165;
 6 176 158 172 162 177 168 151;
 5 167 172 232 158 61 145 214;
 33 179 169 174 5 5 135 178;
 8 104 180 178 172 197 188 169;
 63 5 102 101 160 142 133 139;
 51 47 63 5 180 191 165 5;
 49 53 43 5 184 170 168 74