Search found 111 matches

by alwittta
Wed, 2008-06-25, 15:43
Forum: DCMTK - General
Topic: DICOM Image from JPEG 2000 file
Replies: 6
Views: 9128

Dear Jörg, Thanks for the reply. Following are the values I am giving while the creation of JPEG 2000 compression from DICOM image. Reversible=no Precision=8 I am assuming that by bit depth, you mean Precision. But the minimum and maximum pixel values are different, when I compare with orginal DICOM...
by alwittta
Tue, 2008-06-24, 11:41
Forum: DCMTK - General
Topic: DICOM Image from JPEG 2000 file
Replies: 6
Views: 9128

Dear Jörg, Thanks for the reply. What I am doing here, first I am converting a CT DICOM file to a jpeg 2000 file. After that, I am trying to recreate DICOM file from this jpeg 2000 file. I am applying window width and window level on newly created DICOM image but its display is not correct. Followin...
by alwittta
Mon, 2008-06-23, 21:53
Forum: DCMTK - General
Topic: DICOM Image from JPEG 2000 file
Replies: 6
Views: 9128

I am confused, Is this the the problem with decompression of jp2 file to Unsigned short buffer or the DICOM file creation using DCMTK?
by alwittta
Mon, 2008-06-23, 18:49
Forum: DCMTK - General
Topic: Unusual error from dcmdump
Replies: 6
Views: 6578

Dear friends,

Problem got fixed by using the latest version of DCMTK

Thanks and Regards
Alvin
by alwittta
Sun, 2008-06-22, 19:37
Forum: DCMTK - General
Topic: DICOM Image from JPEG 2000 file
Replies: 6
Views: 9128

DICOM Image from JPEG 2000 file

Dear friends, I am trying to recreate a DICOM file from a jpeg - 2000 file, which actually generated from a DICOM file(CT - bits allocated 16, bits Stored - 12, High Bit - 11, Row x Col - 512 x 512). But after applying Window Center and Width, the output image I am getting is not correct compared wi...
by alwittta
Sun, 2008-06-22, 16:44
Forum: DCMTK - General
Topic: Unusual error from dcmdump
Replies: 6
Views: 6578

Thanks Marco, for the reply.

Could you please tell me which function is used for "guessing" the size of the length filed - VR?

Thanks and Regards
Alvin
by alwittta
Sun, 2008-06-22, 12:32
Forum: DCMTK - General
Topic: Unusual error from dcmdump
Replies: 6
Views: 6578

Dear Jörg

File seems OK, because, I can able to open the file in DicomWorks.
Any clue, where the problem is ?

Thanks and Regards
Alvin
by alwittta
Thu, 2008-06-19, 10:35
Forum: DCMTK - General
Topic: Unusual error from dcmdump
Replies: 6
Views: 6578

Unusual error from dcmdump

Dear friends Could you please tell me what is the meaning of following error: I am getting this error, when I run the dcmdup application D:\CT3S1>dcmdump.exe metadata DcmItem: Non-standard VR ' ' encountered while parsing attribute (0008,0090), assuming 2 byte length field DcmItem: Non-standard VR '...
by alwittta
Tue, 2008-06-03, 13:54
Forum: DCMTK - General
Topic: how to convert bgr to rgb format
Replies: 1
Views: 2955

Swap the bytes

Cheers
Alvin
by alwittta
Sat, 2008-05-31, 08:01
Forum: DCMTK - General
Topic: Low, Medium and High Contrast calculation
Replies: 2
Views: 3779

Dear Marco

Thanks for the reply.
I am trying to figure out the calculation of medium and high contrast, but I don't get any solution.

Could you please provide here a criterion on the calculation of medium and high contrast using the class DicomImage?


Thanks and Regards
Alvin
by alwittta
Thu, 2008-05-29, 22:52
Forum: DCMTK - General
Topic: Low, Medium and High Contrast calculation
Replies: 2
Views: 3779

Low, Medium and High Contrast calculation

Dear friends, Anyone kindly tell me, using the class DicomImage, how can I calculate the low contrast, medium contrast and high contrast (WW/WL) for a CR DICOM image? Following are the information about the CR image that I am using: Bits Allocated – 16 Bits Stored - 10 High Bit - 9 Photmetric - MONO...
by alwittta
Mon, 2008-05-19, 19:23
Forum: DCMTK - General
Topic: createScaledImage-c't Interpolation-abnormal termination
Replies: 9
Views: 13149

Thank you Jörg.

Please provide us the snapshot link once you complete the testing.

Thanks and Regards
Alvin
by alwittta
Mon, 2008-05-19, 10:08
Forum: DCMTK - General
Topic: createScaledImage-c't Interpolation-abnormal termination
Replies: 9
Views: 13149

Dear Jörg,

Thank you very much for the quick reply, which points me on the right direction and for a wonderful toolkit.

Regards
Alvin
by alwittta
Mon, 2008-05-19, 08:42
Forum: DCMTK - General
Topic: createScaledImage-c't Interpolation-abnormal termination
Replies: 9
Views: 13149

Dear Per, Thanks for the reply. When using c't Interpolation algorithm, image clarity is really good as compared with the output of the pbmplus algorithm. ie. Output of pbmplus algorithm is more blurry or pixelated. It will be good for the users to see the images in more clear and accuracy. And in t...
by alwittta
Sun, 2008-05-18, 15:48
Forum: DCMTK - General
Topic: createScaledImage-c't Interpolation-abnormal termination
Replies: 9
Views: 13149

createScaledImage-c't Interpolation-abnormal termination

Dear friends Could anyone please help me to fix this problem. I am having an abnormal termination problem, when using the function createScaledImage of the DicomImage class. Error is happening from the internal function void reducePixel(const T *src[], T *dest[]) (module: DcmImagele, file: discalet....