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kaarthic  
#1 Posted : Tuesday, May 23, 2006 12:38:17 AM(UTC)
kaarthic

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Joined: 5/21/2006(UTC)
Posts: 6
Hi

I want to apply an ICC profile to an Image, i have tried, but the output is differenct compared to photoshop output. Please let me know if i am doing anything wrong

Code:
		Dim oSource As GraphicsMill.Bitmap
		Set oSource = New GraphicsMill.Bitmap
		oSource.LoadFromFile "c:\source.jpg"
		oSource.Data.ColorManagement.DataProfile = "c:\AdobeRGB1998.icc"
		oSource.SaveToFile "c:\output-adobeRGB.jpg"


I have attached the images used in the code.

Thanks

Kaarthic

Edited by user Wednesday, December 19, 2007 4:37:45 PM(UTC)  | Reason: Not specified

kaarthic attached the following image(s):
source.jpg
output-adobeRGB.jpg
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Andrew  
#2 Posted : Tuesday, May 23, 2006 12:53:09 PM(UTC)
Andrew

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Hi Kaarthic,

First of all, try these updated DLLs.

Also, be sure that you use proper color transformation intent (the same as you specify in PhotoShop). Intent is specified using the objBitmap.Data.ColorManagement.Intent property which can be one of the following values:
  • RenderingIntentGraphic = 1 - Saturation intent.
  • RenderingIntentProof = 2 - Relative colorimetric intent.
  • RenderingIntentPicture = 4 - Perceptual intent.
  • RenderingIntentMatch = 8 - Relative colorimetric intent.
  • RenderingIntentProofBPC = 16 - Relative colorimetric intent with black point compensation.
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kaarthic  
#3 Posted : Thursday, May 25, 2006 7:56:46 PM(UTC)
kaarthic

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Joined: 5/21/2006(UTC)
Posts: 6
Hi

I have downloaded the latest DLL as you suggessed, still i am not getting the output similar to Photoshop output

fct4356-052.jpg - source image
fct4356-052-photoshop-srgb.jpg - sRGB color profile applied in photoshop with Perceptual Intent
fct4356-0521-jpg - output image

I have tired as

Code:
Dim oSource As GraphicsMill.Bitmap
Set oSource = New GraphicsMill.Bitmap
oSource.LoadFromFile "C:\SF\Photoshop previews\fct4356-052.jpg"
oSource.Data.ColorManagement.DataProfile = "C:\Leadtools test\sRGB Color Space Profile.icm"
oSource.Data.ColorManagement.Intent = RenderingIntentPicture
oSource.FormatAutoSelect = False
oSource.Formats.SelectCurrent "JPEG"
oSource.Formats.JpegQuality = 100
oSource.SaveToFile "c:\sf\preview\fct4356-0521.jpg"


Help me please, thanks

Kaarthic

Edited by user Wednesday, December 19, 2007 4:38:06 PM(UTC)  | Reason: Not specified

kaarthic attached the following image(s):
fct4356-052.jpg
fct4356-052-Photoshop -sRGB.jpg
fct4356-0521.jpg
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Andrew  
#4 Posted : Thursday, May 25, 2006 10:37:18 PM(UTC)
Andrew

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The code you posted above is analogue to the Assign Profile command in Photoshop, not to the Convert to Profile.

To make conversion, you need:
  1. Make sure that input profile (DataProfile) is available. In your case this is a Adobe RGB 1998, and you need not change it.
  2. Assign output color profile. If you convert to RGB, use RgbProfile. In your case you should assign sRGB profile to it.
  3. Call ConvertTo24bppRgb method.
Here is a code snippet:

Code:
    Dim oSource As GraphicsMill.Bitmap
    Set oSource = New GraphicsMill.Bitmap
    oSource.LoadFromFile "C:\[Test Files]\CM\Attachment54.jpg"
    oSource.Data.ColorManagement.IsEnabled = True
    oSource.Data.ColorManagement.RgbProfile = "T:\ColorConversion\Profiles\sRGB Color Space Profile.icm"
    oSource.Data.ColorManagement.Intent = RenderingIntentPicture
    oSource.Data.ConvertTo24bppRgb
    oSource.FormatAutoSelect = False
    oSource.Formats.SelectCurrent "JPEG"
    oSource.Formats.JpegQuality = 100
    oSource.SaveToFile "c:\[Test Files]\CM\myres.jpg"


I have attached the result image. In my opinion it is quite close to Adobe version.

Hope this helps.

Edited by user Wednesday, December 19, 2007 4:38:43 PM(UTC)  | Reason: Not specified

Andrew attached the following image(s):
myres.jpg
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valbros  
#5 Posted : Sunday, September 17, 2006 1:29:43 AM(UTC)
valbros

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Joined: 11/11/2005(UTC)
Posts: 9
Should this post be for .net?
I can't find any documentation on
oSource.Data.ColorManagement.Intent in
graphics mill for activex.
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Andrew  
#6 Posted : Monday, September 25, 2006 12:39:40 PM(UTC)
Andrew

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No, this property exists in ActiveX version as well. It was not documented by an oversight.
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