Frame registration results in chopped registered frame

[nmontec]

Hello all,

Issuing a normal frame registration between two frames, I get the new framed with a kind of chopped view, it would seem the intersection between the two frames.

Release: 1.7.4.759
Platform: Win32

See attached screenshot.

I am going back to the previous release for now....

Nicola

[nmontec]

Adding console output:

Code: [Select]

Installing 38 module(s):
C:/Program Files/PixInsight2/bin/Annotation-pxm.dll
C:/Program Files/PixInsight2/bin/AssistedColorCalibration-pxm.dll
C:/Program Files/PixInsight2/bin/BackgroundModelization-pxm.dll
C:/Program Files/PixInsight2/bin/BMP-pxm.dll
C:/Program Files/PixInsight2/bin/CloneStamp-pxm.dll
C:/Program Files/PixInsight2/bin/ColorCalibration-pxm.dll
C:/Program Files/PixInsight2/bin/ColorManagement-pxm.dll
C:/Program Files/PixInsight2/bin/ColorSpaces-pxm.dll
C:/Program Files/PixInsight2/bin/Compatibility-pxm.dll
C:/Program Files/PixInsight2/bin/Convolution-pxm.dll
C:/Program Files/PixInsight2/bin/Debayer-pxm.dll
C:/Program Files/PixInsight2/bin/Deconvolution-pxm.dll
C:/Program Files/PixInsight2/bin/DSLR_RAW-pxm.dll
C:/Program Files/PixInsight2/bin/FITS-pxm.dll
C:/Program Files/PixInsight2/bin/Fourier-pxm.dll
C:/Program Files/PixInsight2/bin/Geometry-pxm.dll
C:/Program Files/PixInsight2/bin/Global-pxm.dll
C:/Program Files/PixInsight2/bin/GREYCstoration-pxm.dll
C:/Program Files/PixInsight2/bin/Image-pxm.dll
C:/Program Files/PixInsight2/bin/ImageCalibration-pxm.dll
C:/Program Files/PixInsight2/bin/ImageIntegration-pxm.dll
C:/Program Files/PixInsight2/bin/ImageRegistration-pxm.dll
C:/Program Files/PixInsight2/bin/IntensityTransformations-pxm.dll
C:/Program Files/PixInsight2/bin/JPEG-pxm.dll
C:/Program Files/PixInsight2/bin/JPEG2000-pxm.dll
C:/Program Files/PixInsight2/bin/LocalHistogramEqualization-pxm.dll
C:/Program Files/PixInsight2/bin/MaskGeneration-pxm.dll
C:/Program Files/PixInsight2/bin/Morphology-pxm.dll
C:/Program Files/PixInsight2/bin/MultiscaleProcessing-pxm.dll
C:/Program Files/PixInsight2/bin/NoiseGeneration-pxm.dll
C:/Program Files/PixInsight2/bin/NoiseReduction-pxm.dll
C:/Program Files/PixInsight2/bin/NoOperation-pxm.dll
C:/Program Files/PixInsight2/bin/Obsolete-pxm.dll
C:/Program Files/PixInsight2/bin/PixelMath-pxm.dll
C:/Program Files/PixInsight2/bin/RestorationFilters-pxm.dll
C:/Program Files/PixInsight2/bin/Sandbox-pxm.dll
C:/Program Files/PixInsight2/bin/StarGenerator-pxm.dll
C:/Program Files/PixInsight2/bin/TIFF-pxm.dll
* Scripting resources updated.
38 of 38 module(s) installed.

Processing script file: C:/Program Files/PixInsight2/bin/startup.scp

PixInsight Core 01.07.00.0702 Starbuck (x86)
Copyright (C) 2003-2011 Pleiades Astrophoto
----------------------------------------------------------------------
Welcome to PixInsight. Started 2012-gen-31 21:12:54 J2455958.38396 UTC

* Parallel processing enabled: Using 2 logical processors.
* Thread CPU affinity control enabled.
* PSM AutoSave enabled. Auto-save period: 30 seconds.

Reading 2 image(s):
D:/Elaborazione/G65_Z1_H_crop.fit
Reading FITS: 32-bit floating point, 1 channel(s), 3311x2486 pixels: 100%
D:/Elaborazione/G65_Z2_H_crop.fit
Reading FITS: 32-bit floating point, 1 channel(s), 3301x2477 pixels: 100%

StarAlignment: Processing view: G65_Z1_H_crop
G65_Z2_H_crop:
Structure map: 100%
Detecting stars: 100%
511 stars found.
G65_Z1_H_crop:
Structure map: 100%
Detecting stars: 100%
2232 stars found.
Matching stars ...
* Target image: Limiting to 2000 brightest stars.
232 putative star pair matches.
Performing RANSAC ...
111 star pair matches in 454 RANSAC iterations.
Summary of model properties:
Inliers     : 0.478
Overlapping : 0.347
Regularity  : 0.351
Quality     : 0.519
Root mean square error:
?RMS  :  0.199 px
Average RMS error deviation:
?RMS  :  0.085 px
Peak errors:
?xmax :  0.392 px
?ymax :  0.433 px
Transformation matrix:
     +1.0015     +0.0214    -21.5987
     -0.0198     +1.0022  -1575.8892
     -0.0000     +0.0000     +1.0000
scale    : 0.997
rotation :     -1.12°
dx       :    -21.60 px
dy       :  -1575.89 px
Generating registered image: G65_Z1_H_crop_registered
Homographic Projection / Bicubic Spline Interpolation, c=0.15: 100%
Registration successful.
38.62 s


[nmontec]

Other bit of info: going back to the previous release didn't help  now I can't get a correct registered frame anymore.
Before you ask, I executed the "reset pixinsight settings" routine.

[Juan Conejero]

Hi Nicola,

From the console log it seems the registration was successful. Could you upload both images so I can investigate what happens?

[nmontec]

Sure, where can I upload the fits?

[Juan Conejero]

If you don't have a website, you can use a free file sharing service (such as dropbox.com, just to name an example), or wait until tomorrow and we'll set up a temporary FTP account for you on our server.

[nmontec]

Sent the link by PM

[Juan Conejero]

Hi Nicola,

Thanks for the FITS files. StarAlignment works perfectly with these images. The 'chopped' result is because you are applying a normal image registration process to images that only overlap partially. I guess what you want to do is a mosaic. In this case you have to select StarAlignment's "Register/Union - Mosaic" working mode:

Click to view full-size image

Nice images by the way.

[nmontec]

Thank you Juan for your information. Only one thing: did you manage to register the mosaic without applying a non linear stretch before the registration?

Thanks
Nicola

[Juan Conejero]

Yes, of course. The only correct way to build a mosaic is with linear images.

In the screenshot above, the images are visible thanks to STF. The StarAlignment tool has all default parameters except the mosaic working mode, frame adaptation and mask generation options. This mosaic is very easy to build because there's plenty of overlapping.

[nmontec]

Excellent, thanks again Juan.