On Tuesday, August 6, 2013 1:04:15 PM UTC+5:30, Sajedeh Morabbi wrote: > Hello all > > I have a sample question > > > > For ex you read a pic with imread after that imread return its output to the > > Img_Data variable then you use this code > > Img_Data=Img_Data(:,:,1); > > > > What's the meaning of (:,:,1) and can help me about ':' what's the meaning of ':'? > > > > About get RGB histogram plz get some tips to me with sample code. > > > > Thanks all
(:,:,1) means... first semicolon(:) means all rows. second semicolon (:) means all columns. and 1 means first plane, ie, out of RGB, R.