Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Given: 1 cm by 100 cm long continuous color photo (actual size). Saved in an image format readable by IDL (e.g. READ_JPEG or equivalent). Cannot reduce in size otherwise details will be lost. Want: Read into IDL. Display only 3 cm strip of the actual photo at any given time. Which portion to show depends on some other parameter output from another routine. Problem: 1) Does any one have a similar code to share? If not, any web site that I can get some idea on how best to do this? Any suggestion, especially on the logic, is greatly appreciated. 2) I got a very grainy image when the image is displayed inside IDL. The same image is very clear when displayed using a graphical package (e.g. PhotoShop or equivalent). This is the first time for me on such topic. I must be doing something wrong. Running IDL on WinNT4. Could it be color indexing problem? Or resolution problem, etc? Want to improve quality of image in IDL. Suggestions? Thanks in advance, Mark Chan