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stephanie  
#1 Posted : Wednesday, February 23, 2005 12:44:00 AM(UTC)
stephanie

Rank: Member

Groups: Member
Joined: 12/14/2004(UTC)
Posts: 5

Hi, I'm having a problem with resizing images using GraphicMill. The image resizes correctly, but appears quite pixellated compared with how it looks resizing with PhotoShop or Fireworks, for example. Here's the code I'm using (MS Access):

With Me.BitmapViewer.Bitmap
.FormatAutoSelect = False
.loadfromfile strFileName
.Formats.SelectCurrent "JPEG"
.Formats.JpegIsProgressive = True
.Data.ConvertTo24bppRgb
.Formats.JpegQuality = 30
.Transforms.Resize HorizontalSize, , InterpolationModeHighQuality
.Savetofile strNewFileName
End With

Can you tell me how to make the image look crisper - like they do when resized from Photoshop or comparable programs.

Thanks,
Stephanie
Fedor  
#2 Posted : Wednesday, February 23, 2005 2:15:00 AM(UTC)
Fedor

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Groups: Member, Administration, Moderator
Joined: 7/28/2003(UTC)
Posts: 1,530

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Was thanked: 53 time(s) in 52 post(s)
Stephanie,

Can you post here or submit case with 3 images so that we could compare results:

1. Source image
2. Resized with Graphics Mill
3. Resized with Photoshop

Graphics Mill has sophisiticated image resizing, so I am wonder at problems with quality.

Edited by user Friday, May 23, 2008 3:35:37 PM(UTC)  | Reason: Not specified

Best regards,
Fedor Skvortsov
stephanie  
#3 Posted : Wednesday, February 23, 2005 3:14:00 AM(UTC)
stephanie

Rank: Member

Groups: Member
Joined: 12/14/2004(UTC)
Posts: 5

I've sent an e-mail with the three images (orginal, resized with GraphicsMill and resized with Fireworks). Thanks.
Fedor  
#4 Posted : Wednesday, February 23, 2005 12:43:00 PM(UTC)
Fedor

Rank: Advanced Member

Groups: Member, Administration, Moderator
Joined: 7/28/2003(UTC)
Posts: 1,530

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Was thanked: 53 time(s) in 52 post(s)
Stephanie,

The problem is in low JPEG quality or high level of compression on other side:

...
.Data.ConvertTo24bppRgb
.Formats.JpegQuality = 30
.Transforms.Resize HorizontalSize, , InterpolationModeHighQuality
...

Note that size of JPEG files produced with Graphics Mill and Fireworks are 15kb and 130kb accordingly.

JPEG with high level of compression has 8x8 block artefacts. It is especially noticable on images with gradients and fine details.

That's why to solve this problem you just should play with JPEG quality:

...
.Data.ConvertTo24bppRgb
.Formats.JpegQuality = 70
.Transforms.Resize HorizontalSize, , InterpolationModeHighQuality
...
Best regards,
Fedor Skvortsov
stephanie  
#5 Posted : Thursday, February 24, 2005 1:51:00 AM(UTC)
stephanie

Rank: Member

Groups: Member
Joined: 12/14/2004(UTC)
Posts: 5

Thanks, that seems to help a lot.
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