Author Topic: Tif and jpg file support  (Read 10316 times)

Offline DaveS

  • PixInsight Addict
  • ***
  • Posts: 115
    • Dave's Astronomy Pages
Re: Tif and jpg file support
« Reply #15 on: 2012 February 24 09:26:39 »
The image is definitely displayed as a single 'background layer'.

If I extract the channels in PI, I get three perfect images, R, G and B. However, if I then try to recombine them in PI, I get an error message, stating that this cannot be done. See attached 'screen shot'.

I will upload a small 'crop' of the TIFF.

Dave
8" LX200ACF
William Optics FLT110
NEQ6 Mount
SXVF-H9
SXVR-16
SX Lodestar
DMK21AU04
Baader LRGB and NB filters
DiY Observatory
http://www.progressiveastroimaging.com/davesastronomy/

Offline DaveS

  • PixInsight Addict
  • ***
  • Posts: 115
    • Dave's Astronomy Pages
Re: Tif and jpg file support
« Reply #16 on: 2012 February 24 09:32:06 »
I tried to upload a 'crop' of the TIFF, but it was rejected, 'flagging up' the following error.

I was within the forum size limit.

Dave
8" LX200ACF
William Optics FLT110
NEQ6 Mount
SXVF-H9
SXVR-16
SX Lodestar
DMK21AU04
Baader LRGB and NB filters
DiY Observatory
http://www.progressiveastroimaging.com/davesastronomy/

Offline Nocturnal

  • PixInsight Jedi Council Member
  • *******
  • Posts: 2727
    • http://www.carpephoton.com
Re: Tif and jpg file support
« Reply #17 on: 2012 February 24 09:46:46 »
Try zipping the file first.
Best,

    Sander
---
Edge HD 1100
QHY-8 for imaging, IMG0H mono for guiding, video cameras for occulations
ASI224, QHY5L-IIc
HyperStar3
WO-M110ED+FR-III/TRF-2008
Takahashi EM-400
PIxInsight, DeepSkyStacker, PHD, Nebulosity

Offline Carlos Milovic

  • PTeam Member
  • PixInsight Jedi Master
  • ******
  • Posts: 2172
  • Join the dark side... we have cookies
    • http://www.astrophoto.cl
Re: Tif and jpg file support
« Reply #18 on: 2012 February 24 10:03:51 »
Use the "Apply Global button", the blue disc on the bottom. This should work, creating a new RGB image.

Did you try extracting the alpha channels and deleting them?
Regards,

Carlos Milovic F.
--------------------------------
PixInsight Project Developer
http://www.pixinsight.com

Offline DaveS

  • PixInsight Addict
  • ***
  • Posts: 115
    • Dave's Astronomy Pages
Re: Tif and jpg file support
« Reply #19 on: 2012 February 24 11:05:39 »
Extracting the alpha channels produced one alpha channel (01).

Deleting this, produced the correct (normal) image, then saving it from within PI as a re-named TIFF, allowed it to re-opened in AA5 or PI as a normal TIFF image.

It would appear that although being 'flattened' in P/shop, it isn't truly flattening the image, but leaving behind one alpha channel

P/shop has no problem in opening an image saved as such, but AA5 and PI do not like the presence of the alpha channel, so AA5 and PI are behaving correctly, whereas P/shop is not.

Many thanks for your help in isolating this problem.  :)

Dave
8" LX200ACF
William Optics FLT110
NEQ6 Mount
SXVF-H9
SXVR-16
SX Lodestar
DMK21AU04
Baader LRGB and NB filters
DiY Observatory
http://www.progressiveastroimaging.com/davesastronomy/

Offline Carlos Milovic

  • PTeam Member
  • PixInsight Jedi Master
  • ******
  • Posts: 2172
  • Join the dark side... we have cookies
    • http://www.astrophoto.cl
Re: Tif and jpg file support
« Reply #20 on: 2012 February 24 11:47:59 »
Perhaps you may want to change the behaviour in PI with transparencies. I don't like the chess pattern, so I just disable them in the global preferences. It has the con that sometimes the cursor is not displayed properly under transparent regions.
Regards,

Carlos Milovic F.
--------------------------------
PixInsight Project Developer
http://www.pixinsight.com

Offline sleshin

  • PixInsight Old Hand
  • ****
  • Posts: 431
Re: Tif and jpg file support
« Reply #21 on: 2012 February 24 12:48:10 »
It looks like there was a star mask used in PS. If so and it wasn't deselected it may still be part of the image. Check the channel window and see if there's a separate channel that cantains the mask. If so, just delete that channel and re-save the image.

Steve
Steve Leshin

Stargazer Observatory
Sedona, Arizona

Offline DaveS

  • PixInsight Addict
  • ***
  • Posts: 115
    • Dave's Astronomy Pages
Re: Tif and jpg file support
« Reply #22 on: 2012 February 25 03:56:35 »
Good thinking Steve, that's exactly what the problem was, the star-layer was still there as a channel, and of course not removed by 'flattening'.

An easy trap to fall into, and one of which I'm now aware of.

Many thanks

Dave

8" LX200ACF
William Optics FLT110
NEQ6 Mount
SXVF-H9
SXVR-16
SX Lodestar
DMK21AU04
Baader LRGB and NB filters
DiY Observatory
http://www.progressiveastroimaging.com/davesastronomy/