2026-10-09 APP 2.0.0-beta48 has been released !
This is mainly a bug fix release for the reported bugs in beta47. In addition it has a significant User Interface performance improvement noticable when you need to process 1000s of images in APP.
2026-10-03 APP 2.0.0-beta47 has been released !
This is a very big release... many code optimizations/rewrites, many parts of APP are much faster and more precise, especially star analysis and registration are much faster ! Big mosaics will go much faster 🙂
And we introduce a new preview filter, which includes the new Adaptive Deep Sky Stretch and a General Levels Stretch, this has been long over due. The old preview filter (the panel on the right side to stretch and preview your data) has not been updated for a couple of years and it is a critical part of any APP session.
Adaptive Deep Sky Stretch or ADSS is a much more intuitive stretch algorithm. It is also color preserving (which is a great new addition in itself ! ) which means that the highlights are no longer bleached, color is maintained from the linear data while stretching. You can simply stretch your data using the sky background level and signal width sliders which work much easier and more intuitive. You no longer need to fiddle with the old complicated sliders with zoom buttons. All the zoom buttons for the sliders are made redundant. And you can enter slider values in the slider value fields yourself. I will make a youtube video in the coming days to explain and fully introduce ADSS. Once the video is ready, it will be highlighted on the forum.
RGB Combine upgrade !. The RGB Combine Tool has been rewritten mostly. The tool is faster and easier to use and most importantly, the Luminance slider to inject a luminance channel or channels into the RGB composite is now working correctly. It no longer bleaches the RGB colors. Combined with the new ADSS preview, you will get much better and easier great composites with great color! I will also explain this in a new youtube video.
Hello, I'm new to the forum, let me introduce myself.
My name is Remanzacco Robertop and abitop in remanzacco (Udine)
I downloaded and installed the beta 3 astropixel deprogram, then I realized that the final version existed, so I installed it.
I discovered a problem with photos taken on different days.
If I integrate those of the day before the result is perfect, if instead I add other photos of the same subject but taken the day after the result is unpleasant. Here's the picture.
This is the median of 12 shots taken on January 22nd and 20 shots taken on January 23rd. Do you see the problem?
This is the report that gives me some errors.
Il soggetto è IC_434
è
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - MEMORY TO FILE MAPPER: encountered IO exception while writing to E:\IC_434\Light-RGB-session_1.dat
10:07:29 - 6) INTEGRATE: integrate light frames: wrote frame: 32 to file mapper
10:07:29 - 6) INTEGRATE: integrate light frames: LNC rejection parameters: starting Local Normalization Correction outlier rejection integration...
10:08:28 - 6) INTEGRATE: integrate light frames: LNC rejection parameters: analysing light 32
10:08:30 - 6) INTEGRATE: integrate light frames: LNC rejection parameters: finished succesfully
10:12:53 - 6) INTEGRATE: integrate light frames: integrating pixels 24420353 to 24423855 of 24423855
10:12:53 - 6) INTEGRATE: integrate light frames: constructing integration result
10:12:53 - MEMORY TO FILE MAPPER: closing memory to file mapper...E:\IC_434\Light-RGB-session_1.dat
10:12:53 - MEMORY TO FILE MAPPER: removing mapped file
10:12:53 - MEMORY TO FILE MAPPER: closed succesfully
10:12:53 - 6) INTEGRATE: integrate light frames: integration task has completed
10:12:53 - 6) INTEGRATE: integrate light frames: integration task finished
10:13:00 - GENERAL FRAME SAVER: directory: E:\IC_434
10:13:00 - GENERAL FRAME SAVER: file type: FITS
10:13:00 - GENERAL FRAME SAVER: bit depth: no Bitdepth Conversion
10:13:00 - GENERAL FRAME SAVER: DPI (Dots Per Inch): 72
10:13:00 - GENERAL FRAME SAVER: ICC profiles: no profile/linear data
10:13:00 - GENERAL FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2.fits : starting...
10:13:00 - GENERAL FRAME SAVER: performing bitdepth conversion if required...
10:13:00 - GENERAL FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2.fits : starting FITS FRAME SAVER
10:13:00 - FITS FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2.fits : starting...
10:13:00 - FITS FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2.fits : constructing 32-bits FLOAT databuffer..
10:13:00 - FITS FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2.fits : creating FITS HEADER...
10:13:00 - FITS FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2.fits : writing to disc...
10:13:00 - FITS FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2.fits : finished successfully
10:13:00 - GENERAL FRAME SAVER: null : finished successfully
10:13:00 - FRAME DETAILS UPDATER: starting...
10:13:00 - FRAME DETAILS UPDATER: checking for duplicates in new frames...
10:13:00 - FRAME DETAILS UPDATER: adding 1 new frames...
10:13:00 - FRAME DETAILS UPDATER: acquired frame details of file IC_434-RGB-session_1-2.fits
10:13:00 - FRAME DETAILS UPDATER: adding integration frame: IC_434-RGB-session_1-2.fits
10:13:00 - FRAME DETAILS UPDATER: rebuilding all frame details...
10:13:00 - FRAME DETAILS UPDATER: checking if frames were identified earlier...
10:13:01 - FRAME DETAILS UPDATER: updated succesfully
10:13:01 - CONSTRUCT FRAME DETAILS LIST: starting...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: sorting frames...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: Fixing file arrays...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: numbering frames...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: adding frame marks...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: finished
10:13:01 - FRAME DETAILS UPDATER: starting...
10:13:01 - FRAME DETAILS UPDATER: no new frames to add
10:13:01 - FRAME DETAILS UPDATER: rebuilding all frame details...
10:13:01 - FRAME DETAILS UPDATER: checking if frames were identified earlier...
10:13:01 - FRAME DETAILS UPDATER: updated succesfully
10:13:01 - CONSTRUCT FRAME DETAILS LIST: starting...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: sorting frames...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: Fixing file arrays...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: numbering frames...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: adding frame marks...
10:13:01 - CONSTRUCT FRAME DETAILS LIST: finished
10:13:01 - CONSTRUCT FRAME DETAILS LIST: loading last integration: E:\IC_434\IC_434-RGB-session_1-2.fits into image viewer...
10:13:02 - IMAGE VIEWER: loading into Linear Image Loader: E:\IC_434\IC_434-RGB-session_1-2.fits
10:13:02 - GENERAL IMAGE LOADER: loading frame E:\IC_434\IC_434-RGB-session_1-2.fits
10:13:03 - PREVIEW FILTER: filtering new frame:IC_434-RGB-session_1-2.fits
10:13:03 - PREVIEW FILTER: converting 32bits FLOAT data type frame to normalised 32bits FLOAT data type frame with range [0,1]
10:13:03 - IMAGE CONVERTER: image conversion not needed, data is already normalized...
10:13:03 - PREVIEW FILTER: conversion succesfull
10:13:03 - PREVIEW FILTER: creating clone of frame...
10:13:03 - GENERAL IMAGE LOADER: frame E:\IC_434\IC_434-RGB-session_1-2.fits was loaded successfully
10:13:04 - PREVIEW FILTER: DDP on
10:13:04 - PREVIEW FILTER: saturation off
10:13:04 - PREVIEW FILTER: auto DDP, black (B) point set to 0,023498
10:13:04 - PREVIEW FILTER: auto DDP, white (W) point set to 1,000000
10:13:04 - PREVIEW FILTER: auto DDP, reset gamma correction (G) to 1.0
10:13:04 - PREVIEW FILTER: auto DDP, setting stretch (ST) parameter to 0,019422
10:13:04 - PREVIEW FILTER: auto DDP, setting base (BA) pedestal to 0,025000
10:13:04 - PREVIEW FILTER: starting 32bits preview filter
10:13:05 - PREVIEW FILTER: 32bits preview filter finished successfully
10:13:05 - PREVIEW FILTER: sending frame to IMAGE VIEWER
10:13:27 - PREVIEW FILTER: refiltering: IC_434-RGB-session_1-2.fits
10:13:27 - PREVIEW FILTER: creating clone of frame...
10:13:27 - PREVIEW FILTER: starting 32bits preview filter
10:13:28 - PREVIEW FILTER: 32bits preview filter finished successfully
10:13:28 - PREVIEW FILTER: saving stretched frame...
10:13:33 - GENERAL FRAME SAVER: directory: E:\IC_434
10:13:33 - GENERAL FRAME SAVER: file type: JPEG
10:13:33 - GENERAL FRAME SAVER: bit depth: 8 bits integers
10:13:33 - GENERAL FRAME SAVER: DPI (Dots Per Inch): 72
10:13:33 - GENERAL FRAME SAVER: ICC profiles: sRGB v4 Preference
10:13:33 - GENERAL FRAME SAVER: JPEG quality: 75
10:13:33 - GENERAL FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : starting...
10:13:33 - GENERAL FRAME SAVER: performing bitdepth conversion if required...
10:13:33 - GENERAL FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : starting JPEG FRAME SAVER
10:13:33 - JPEG FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : starting...
10:13:44 - JPEG FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : ICC profile applied
10:13:44 - JPEG FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : creating writer...
10:13:44 - JPEG FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : writing...
10:13:45 - JPEG FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : creating metadata...
10:13:45 - PREVIEW FILTER: stretched frame saved
10:13:45 - FRAME DETAILS UPDATER: starting...
10:13:45 - FRAME DETAILS UPDATER: checking for duplicates in new frames...
10:13:45 - FRAME DETAILS UPDATER: adding 1 new frames...
10:13:45 - FRAME DETAILS UPDATER: acquired frame details of file IC_434-RGB-session_1-2-St.jpg
10:13:45 - FRAME DETAILS UPDATER: adding processed frame: IC_434-RGB-session_1-2-St.jpg
10:13:45 - FRAME DETAILS UPDATER: rebuilding all frame details...
10:13:45 - FRAME DETAILS UPDATER: checking if frames were identified earlier...
10:13:45 - JPEG FRAME SAVER: E:\IC_434\IC_434-RGB-session_1-2-St.jpg : finished successfully
10:13:45 - GENERAL FRAME SAVER: null : finished successfully
10:13:45 - FRAME DETAILS UPDATER: updated succesfully
10:13:45 - CONSTRUCT FRAME DETAILS LIST: starting...
10:13:45 - CONSTRUCT FRAME DETAILS LIST: sorting frames...
10:13:45 - CONSTRUCT FRAME DETAILS LIST: Fixing file arrays...
10:13:45 - CONSTRUCT FRAME DETAILS LIST: numbering frames...
10:13:45 - CONSTRUCT FRAME DETAILS LIST: adding frame marks...
10:13:45 - CONSTRUCT FRAME DETAILS LIST: finished
@remanzacco1 Ciao Roberto. Your question is unrelated to the topic where you posted it, so I split it off to a new topic.
From the logs it looks like you are processing your data on an external disk. Is that a solid state disk (SSD)? If not, then that is the problem. APP is very I/O intensive and doesn't work well with external HDD disks. Please copy all data to the internal drive of your computer and try again.
