--- Begin Forwarded Message --- Date: 21 May 2001 04:16:54 MDT From: SANJAY RAUL <[log in to unmask]> Subject: Orthoimagery Specifications. Hello All, I am doing a Quality check on 1:4000 mapscale 20 cm resolution color orthoimages. In addition of checking the orthoimages on the screen for their geometry accuracy I also needs to check its color balance (tonal distribution) through reading its histograms. I am interested in knowing what should be the range for color orthoimages for its Mean and Standard deviation values. How will I know that an image as all the details in it by reading its histogram. Any help, guidlines or suggestions will be appreciated. Thanks in advance. sanjay ____________________________________________________________________ Get free email and a permanent address at http://www.netaddress.com/?N=1 --- End Forwarded Message ---