Hello, I have to expand jp2 files into an internal buffer. I use currently code based on the kdu_expand sample. But the code is a bit complex. Is there a more...
I need to read JPEG2000 files. My goal is read that files using the kakadu library and C# (in .NET). First, I want to know if this is possible, since when I...
... Hi Thorsten, all you have to look for is how the given examples store the pixel vals of the decompressed content in the declared pgm-file. Substitute the...
hi,Dr.Taubman thanks you very much for your prompt response to my question on how to use the the argument -roi mask.pgm. I have solved it under your...
Hi xpworm, If you impose a "-rate" limit, you cannot expect the software to also give you lossless compression, unless your rate limit is compatible. Also, to...
HI Thorsten, I suggest you start with "simple_example_d", and then move on to the slightly more complex "kdu_buffered_expand". These will show you easy, if...
HI Thorsten, ".jpf" is the official suffix for JPX files (only because ".jpx" was taken by something else). You should have no trouble reading a legal JPX...
Hi Braulio, You may be able to find answers to this question in a number of past responses on this reflector, by searching the database. The answer may also...
Hi Mal, It is possible that I did not provide sufficient "JNI portable" interfaces for the "kdu_region_compositor" object, which is relatively new to Kakadu....
This problem was resolved in v4.2.1, which was released a couple of months ago. Cheers, David ... From: <yourf@...> To: <kakadu_jpeg2000@yahoogroups.com>...
Hi Matt, I am afraid I cannot reproduce your problem. I used your parameters and all went well. I'm not sure what I can suggest. Perhaps running it in the...
Hi all! I'm adding security to JPEG2000 files and I have doubth concerning kdu_show. Where does it calls the decoding methods to get the samples it will...
Hi Antonio, Here is roughly how it works. It uses the "kdu_region_compositor" object to do all decompression and rendering tasks. That object maintains an...
Hi Mike, It is unclear to me exactly what the support would entail. Perhaps all you want is an easy method to gain access to the relevant box. You can...
Hi, If I have a codestream (kdu_codestream) with several quality layers, what's the easiest way, using Kakadu 4.1 or 4.2, to discard the last N layers? I ...
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Sep 10, 2004 7:16 pm
2501
Hi all, I want to make a change directly to the encoded bitstream. However, even when I delete only a byte, e.g. 0xC5 (not header information), decoding will...
It is indeed the geo-locator information I am interested in. I can parse the box myself no problem, I just wanted avoid re-inventing something that has...
Hello all, Has anyone successfully built the latest Kakadu libraries using Visual Studio .NET 2003? The last time I built Kakadu I used VC Studio 6.0, but...
I have built version 4.2.1 with VS .NET 2003. I don't recall any particular problems. - Michael Unverferth ... using ... Studio ... with .NET ... out...
Fantastic! Thanks for responding so quickly Mike. Bill Dickinson ... From: mikeunverferth [mailto:no_reply@yahoogroups.com] Sent: Friday, September 10, 2004...
HI Bob, You should just be able to supply a "Clayers" argument to "kdu_transcode", specifying the reduced number of layers, unless I somehow overlooked that...
Hi Carrot, By default, the kakadu codestream parser works in a mode which is fussy with respect to the codestream contents and tolerant with regard to the...
Hi all, I compressed the 512 by 512 gray scale Lena image using the Kakadu. I first deleted a packet head from the original codestream and then decompressed...
David, Finally I've found the problem : in fact I've modified the Makefile-Solaris-gcc to use /usr/css/bin/ld -G in place of gcc -shared and it seems this is...
Hi: On the processor(ARM7TDMI), how much time should it consume if decodeing a large image such as 2104*1405. The decodering time depend on resolution levels ,...
Hi David, Thanks, that does the trick. Although I'm not using kdu_transcode.cpp directly, it appears that putting, for example, ...
Bob .
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Sep 14, 2004 10:39 pm
2513
HI Bob, Yes, this will work, but you could do it in a more robust fashion, as follows. First read the value of the Clayers attribute using something like ...
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