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Messages - hvb356

Pages: 1 2 [3] 4
31
Wish List / Fast delinearization
« on: 2017 October 31 11:10:15 »
Delinearization of a linear image as "one step solution" from STF.

Hartmut

32
Bug Reports / Null interpolation ...
« on: 2017 July 09 06:59:55 »
Hello,

just found this error, when opening a project.
I saved the top image view, deleted the existing view and restored the image with the same effect.

What can I do to continue working on this image?

Regards

Hartmut

33
Hi Juan,

that's a perfect answer. So, if the attributes say compression=nothing, I can simply take the buffer 'as is'.

Best regards and thank's for the help

Hartmut


34

Hi Juan,

>  How are you using XISF files from Windows forms?

by reading the file with .net XmlReader

I try to give you one example:
 
PixInsight (fit) file copy:

FileSize   33,318,720 bytes

Save as XISF, LZ4, unchecked Byte shuffling
===========================================

FileSize   33,317,968 bytes (248 bytes more compared to the uncompressed file!)

Reading this file returned

Attributes

bounds   0:1
checksum   nothing
colorSpace   Gray
compression   nothing
geometry   3326:2504:1
location   attachment:4752:33313216
sampleFormat   Float32

Metadata

CreationTime   2017-04-04T09:22:10Z
CreatorApplication   PixInsight 01.08.04.1195
CreatorModule   XISF module version 01.00.06.0107
CreatorOS   Windows
BlockAlignmentSize   nothing
MaxInlineBlockSize   nothing
CompressionMethod   lz4
CompressionLevel   64
AbstractCompressionLevel   0
ChecksumMethod   nothing
 

Save as XISF, LZ4+shuffling
===========================

FileSize   25,371,861

Attributes

bounds   0:1
checksum   nothing
colorSpace   Gray
compression   lz4+sh:33313216:4
geometry   3326:2504:1
location   attachment:4787:25367074
sampleFormat   Float32

Metadata

CreationTime   2017-04-04T09:26:08Z
CreatorApplication   PixInsight 01.08.04.1195
CreatorModule   XISF module version 01.00.06.0107
CreatorOS   Windows
BlockAlignmentSize   nothing
MaxInlineBlockSize   nothing
CompressionMethod   lz4+sh
CompressionLevel   64
AbstractCompressionLevel   0
ChecksumMethod   nothing

This is, what I see.

Best regards

Hartmut


35
Dear Juan,

for some reasons, I need to process XISF formatted files from a Windows forms application. Reading uncompressed data as well as Zlib compressed data with or without byte shuffling works as expected.

My attempts to get lz4 or lz4-HC decompression to work failed. lz4 or lz4-HC are in fact plain copies without a compression attribute. The metadata compression method is correctly stored.

lz4+sh works as promised.   

Regards

Hartmut

36
General / Re: Activation
« on: 2016 March 21 11:43:38 »
Thank you Mike,

I could solve the problem. The license file was not in the folder C:\Users\...\AppData\Roaming\Pleiades as assumed ind the FAQs.

Regards

Hartmut

37
General / Activation
« on: 2016 March 21 10:40:07 »
Hi,

the latest update of PI requires the

User identifier
Activation code

I copied both strings from my commercial licsense as always, but the server says 'INVALID AUTHORIZATION CODE'.

What can I do?

Please help and thanks

Hartmut

38
Gallery / Re: NGC4945
« on: 2014 May 27 10:32:00 »
Hello Herbert,

as you said, it's a wonderful target. I like your processing and how you accentuated the color of the galaxy and the big stars.

Regards

Hartmut

39
Gallery / Globular Cluster M 13 from last week
« on: 2014 May 27 07:14:11 »
Hi,

now, as nights get shorter, I could spend just 2 hrs taking LRGB unbinned (30:30:30:30) on M 13.

M 13 is actually the 1st one on my flickr page:  https://www.flickr.com/photos/hvb_astro

Processing was PixInsight standard combining LRGB-RGB with deconvolved luminance frames.

Thanks for looking

Hartmut Bornemann
 

40
Gallery / Globular Cluster M 3
« on: 2014 April 18 08:11:38 »
Hi,

this target was captured over 5 hrs or 60 x 5 min LRGB (75:75:75:75). The R, G and B frames where binned 2x2. This concept of unbinned L and binned color frames is still in my head but in fact, it is an unneccessary overhead which also implies the risk, if you register with the wrong interpolation. Not to speak about having different calibration frames prepared.

M 3 is actually the 1st one on my flickr page:  https://www.flickr.com/photos/hvb_astro

I used standard PixInsight methods and reduced the noise with the more advanced TGVDenoise. Some stars show unwanted turquoise spots in their outer region. I believe, those are produced by a poor parameterization of the deconvolution process.

Thanks for looking

Hartmut Bornemann

41
Bug Reports / Re: Statistics process crashes
« on: 2014 April 09 05:38:46 »
Hi Juan,

that's good and thank you for the workaround.

Regards

Hartmut

42
Bug Reports / Re: Statistics process crashes
« on: 2014 April 09 05:20:31 »
Georg,

yes, it's random. And if this can help, it just happens again when I tried to close the preview window.

Regards

Hartmut

43
Bug Reports / Re: Statistics process crashes
« on: 2014 April 09 01:41:17 »
Hola Juan,

I collected some material:

- the image

https://dl.dropboxusercontent.com/u/90132063/Documents/M%203.fit

- the situation at the beginning

https://dl.dropboxusercontent.com/u/90132063/Documents/M3HistRTPreview.png

- and with the exception

https://dl.dropboxusercontent.com/u/90132063/Documents/M3HistRTPreview_Exception.png

This exception occured, when I clicked the close icon (x) at the Real-Time Preview window and the busy icon at the top left of the window was rotating over the time. In some cases before, access violations happened frequently with other actions. Simple "mouse over" operations in the statistics process or disabeling the preview led to that kind of errors too.

My system:

Dell precision M6600, 8 GB, Win 7 64-Bit.

Regards

Hartmut Bornemann

44
Bug Reports / Statistics process crashes
« on: 2014 April 07 11:18:26 »
Hi,

since a while the statistics process crashes on previews with memory addressing error. 
Is there anything I can do by myself?

Regards 

Hartmut Bornemann

45
Hi Carlos,

thank you. That's a helpful statement.

All the best

Hartmut


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