how to downsample a color image in matlab??

hi, I d like to know how to downsample an image. i used the normal downsample syntax for an image but i din get d result i want. I want every pixel in the image to be downsampled. I searched for codes but din understand syntax used in many codes. kindly help me wid dis.

[Jurgen]

You mean you want to reduce the bitdepth, not the resolution, right?

Answer 1

[Image Analyst]

How about imresize():

resizedImage = imresize(originalImage, [numRows, numCols]);