Search found 7 matches

by robduff
Fri Sep 30, 2011 3:24 pm
Forum: Image Processing & Document Imaging
Topic: DPI and Color Depth Resulting in Banded Images
Replies: 1
Views: 3667

Re: DPI and Color Depth Resulting in Banded Images

While I was waiting for a response I did my own research on how to fix the DPI issue with BMP files. The solution was two parts. 1) Don't use GdPicture to change the DPI for BMP images - no offense intended. 2) Modify the BMP header to reflect the actual DPI I needed. As it turns out the DPI (dots-p...
by robduff
Mon Sep 19, 2011 7:12 pm
Forum: Image Processing & Document Imaging
Topic: DPI and Color Depth Resulting in Banded Images
Replies: 1
Views: 3667

DPI and Color Depth Resulting in Banded Images

My requirements specify the image must be 72.009 DPI and have a bit depth of 8-bits, and if an image does not match these requirements, then I am to convert it so it does. I am having difficulty taking a BMP image that has a vertical and horizontal DPI of 71.9836 and setting it to 72.009 without the...
by robduff
Mon Jun 06, 2011 8:11 pm
Forum: Example requests & Code samples
Topic: FloydSteinberg
Replies: 3
Views: 3616

Re: FloydSteinberg

The resulting image is grainy. Is there a way to get a smoother dither?
by robduff
Fri Jun 03, 2011 9:49 pm
Forum: Example requests & Code samples
Topic: FloydSteinberg
Replies: 3
Views: 3616

Re: FloydSteinberg

Your code snippet worked great! Thanks for the response it is much appreciated. It is good to know I will still be able to utilize the license my company purchased. Here is the snippet in c-sharp revised for my test code: using (System.IO.Stream ms = new System.IO.MemoryStream()) { int intImageID = ...
by robduff
Thu Jun 02, 2011 7:07 pm
Forum: Example requests & Code samples
Topic: FloydSteinberg
Replies: 3
Views: 3616

FloydSteinberg

I need to reduce the number of colors in images and then dither them so there is no banding. Does GdPicture support the Floyd Steinberg dithering method? I know there is a bitonal method FxBlackNWhite that does, but I need to retain the colors. Here are my basic requirements: 1. Convert incoming col...
by robduff
Thu May 05, 2011 6:16 pm
Forum: General discussions
Topic: Could not load file or assembly 'GdPicture.NET'
Replies: 2
Views: 5248

Re: Could not load file or assembly 'GdPicture.NET'

Thanks for the reply. See my edit above for how a co-worker and I resolved this issue. Your response is too general and probably would not have helped me much, but a quick response is very much appreciated.
by robduff
Thu May 05, 2011 5:05 pm
Forum: General discussions
Topic: Could not load file or assembly 'GdPicture.NET'
Replies: 2
Views: 5248

Could not load file or assembly 'GdPicture.NET'

After compiling and running my ASP.Net C sharp website successfully (.Net Framework v3.5) in the development environment (VS2008) I published it to our 64bit test environment - both dev and the test environment are on the same machine. However, when I try and bring up the website I receive the follo...