August 29, 2008 06:08pm pdt

1. TheLearn... 54,425
2. jaime_oliv... 34,800
3. emoreau 27,750
4. naspinski 20,850
5. ororiole 19,930
6. Dhaest 17,380
7. Fernando... 15,000
8. ozymandias 13,000
9. philipjonat... 12,400
10. graye 12,075
11. samtran0... 10,880
12. abel 10,500
13. CuteBug 9,590
14. DarkoLord 8,800
15. Idle_Mind 8,400
15. DaTribe 8,400
17. meverest 8,000
17. p_davis 8,000
17. CMYScott 8,000
20. rachitkohli 7,600
21. sachintana 7,400
22. prairiedog 7,000
23. jcoehoorn 6,750
24. jpaulino 6,700
25. tedbilly 6,500

1. TheLearn... 56,425
2. jaime_oliv... 37,800
3. emoreau 27,750
4. naspinski 20,850
5. ororiole 19,930
6. Dhaest 17,380
7. Fernando... 15,150
8. ozymandias 13,000
9. philipjonat... 12,400
10. graye 12,075
11. samtran0... 10,880
12. abel 10,500
13. CuteBug 9,590
14. DarkoLord 8,800
15. Idle_Mind 8,400
15. DaTribe 8,400
17. CMYScott 8,000
17. p_davis 8,000
17. meverest 8,000
20. rachitkohli 7,600
21. sachintana 7,400
22. prairiedog 7,000
23. surajguptha 6,900
24. jcoehoorn 6,750
25. jpaulino 6,700

07.12.2008 at 02:10PM PDT, ID: 23560042

	[x] Attachment Details

Dithered Gif images created by .Net

Asked by astromex in .NET Framework 3.x versions, Web Graphics Software, Microsoft Visual C#.Net

Tags: .Net, C#, IE7 / Firefox

I am dynamically creating images in .Net 3.0, but each format is giving me problems.
- When I save as Gif, the image is (I think the term is) 'ditherered'
- When I save as Png, it looks great in Firefox but in IE7 the colours ae not correct (for example in IE7 renders #CD5C5C as #C75151 - compare attached file in FF and IE).

So I either need the gif to be non-dithered, or the Png to work in IE - ideally a solution for both would be great.
ThanksStart Free Trial

         
           
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             // Creates a square with a circle in the middle.
Bitmap tn = new Bitmap(30, 30);
Graphics gForm = Graphics.FromImage(tn);
 
gForm.CompositingMode = CompositingMode.SourceOver;
gForm.CompositingQuality = CompositingQuality.HighQuality;
gForm.SmoothingMode = SmoothingMode.HighQuality; ;
 
// Draw the background.
Brush BackBrush = new SolidBrush(Color.IndianRed);
gForm.FillRectangle(BackBrush, 0, 0, tn.Height, tn.Width);
BackBrush.Dispose();
 
Brush FillBrush = new SolidBrush(Color.BlueViolet);
gForm.FillEllipse(FillBrush, 10, 10, 10, 10);
FillBrush.Dispose();
 
tn.Save(OutputFolder + @"test.jpg", ImageFormat.Jpeg); //too blury!
tn.Save(OutputFolder + @"test.Gif", ImageFormat.Gif); // too dithered!
tn.Save(OutputFolder + @"test.Png", ImageFormat.Png); // IE7 problem!

           
         

Attachments:

test.Gif (1007 bytes) (File Type Details)

Gif version of image.

test.Png (398 bytes) (File Type Details)

Png version of image.

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20080716-EE-VQP-32 / EE_QW_2_20070628

Dithered Gif images created by .Net

Asked by astromex in .NET Framework 3.x versions, Web Graphics Software, Microsoft Visual C#.Net

Tags: .Net, C#, IE7 / Firefox

About this solution