Details
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Type:
Bug
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Status: Closed
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Priority:
Minor
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Resolution: Fixed
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Affects Version/s: 4.0
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Fix Version/s: 4.2
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Component/s: Core/Parsing
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Labels:None
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Environment:Any
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Assignee Priority:P1
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ICEsoft Forum Reference:
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Workaround Description:ICEpdf 4.1.3 uses a new CYMK colour space converter. Image are still a little dark but overall image quality has be greatly improved.
Description
This has bean a long standing bug with how we apply CMYK colour model to some image types. There is foot note in the 4.8.5 Masked Images section that might shed some light on the problem. The PDF in question showd the images as being very blue as as I result I suspect the colour model might be incorrectly applied.
Here is a sample of the image dictionary that is likely responsible for the issue.
/Intent/RelativeColorimetric
/Subtype/Image
/Length 64768
/Filter/DCTDecode/
Name/X/
BitsPerComponent 8
/ColorSpace/DeviceCMYK
/Width 465
/Height 349
/Type/XObject
Here is a sample of the image dictionary that is likely responsible for the issue.
/Intent/RelativeColorimetric
/Subtype/Image
/Length 64768
/Filter/DCTDecode/
Name/X/
BitsPerComponent 8
/ColorSpace/DeviceCMYK
/Width 465
/Height 349
/Type/XObject
Activity
| Field | Original Value | New Value |
|---|---|---|
| Salesforce Case | [] | |
| Fix Version/s | 4.1 [ 10227 ] | |
| Assignee | Patrick Corless [ patrick.corless ] | Mark Collette [ mark.collette ] |
| Attachment | _61SPB01_CMJN_20100505_S1001639.pdf [ 12400 ] |
| Salesforce Case | [] | |
| Fix Version/s | 4.1.1 [ 10244 ] | |
| Fix Version/s | 4.1 [ 10227 ] |
| Attachment | p4.pdf [ 12489 ] |
| Salesforce Case | [] | |
| Fix Version/s | 4.2 [ 10243 ] | |
| Fix Version/s | 4.1.1 [ 10244 ] |
I'll see I I can't tweak the dark levels a little bit more.
Show
Patrick Corless
added a comment - I'll see I I can't tweak the dark levels a little bit more.
| Workaround Description | ICEpdf 4.1.3 uses a new CYMK colour space converter. Image are still a little dark but overall image quality has be greatly improved. | |
| Salesforce Case | [] | |
| Priority | Major [ 3 ] | Minor [ 4 ] |
| Salesforce Case | [] | |
| Assignee Priority | P1 |
The cmyk levels where tweaked a bit for 4.1.2 for a client (p4.pdf). The other image in question (_61SPB01_CMJN_20100505_S1001639.pdf) had a few images that didn't look right related to the YCCK colour model which was fixed in PDF-247.
Closing issue.
Show
Patrick Corless
added a comment - The cmyk levels where tweaked a bit for 4.1.2 for a client (p4.pdf). The other image in question (_61SPB01_CMJN_20100505_S1001639.pdf) had a few images that didn't look right related to the YCCK colour model which was fixed in PDF-247 .
Closing issue.
| Status | Open [ 1 ] | Resolved [ 5 ] |
| Resolution | Fixed [ 1 ] |
| Status | Resolved [ 5 ] | Closed [ 6 ] |
From http://www.icefaces.org/JForum/posts/list/17351.page .