| Version | Change log |
| DeepSkyStacker 5.1.6 Jan 31, 2025 |
Bug fix: When saving the project to a file-list, a default file name is suggested which is equal to the name of the current directory. Bug fix: The circles around the stars and the comet stayed even after clearing the file list. Lower the minimum detection threshold for registering from 2% to 1%. Bug fix: Crash caused by trying to de-bayer 32 bits FITS files with the method AHD. Bug fix: AVX support to prevent Illegal Instruction problem on earlier CPU types (e.g. Xeon X5650). Bug fix: Add check box to control display of Black/White clipping in Processing panel. Bug fix: Custom rectangle produces a partly empty stacking result when the SIMD acceleration is turned ON. Implement an automatic threshold for star detection (which is the default) and a much better image quality indication (Quality) which is a Gaussian mean of star quality as compared to the Score which was the sum of all star qualities (calculated differently) and was dependent on the number of stars as well as their quality. The automatic threshold will be in the range 0.05% and 100%, and the target number of stars is ~50. The new Quality metric is primarily based on the average circularity ("roundness") of the stars in the image. It is largely independent of the number of detected stars. The background level, to which the star detection threshold refers, is now calculated locally per 250x250 pixel square rather than globally over the entire image. This compensates for any background illumination gradients. All light frame sorting criteria have been switched to use the new Quality value instead of the Score (e.g. for stacking the best x% light frames). The first light frame to register will be either the first in the frame list, or the reference frame (if one was chosen). If auto-threshold is used, the detected threshold of this light frame will serve as the basis for the threshold search of the following frames. We suggest that you ensure that the first registered light frame is not significan |
| DeepSkyStacker 4.2.3 Feb 4, 2020 |
The main changes in this release are The 32 bit version will now run on Windows XP SP3. It is likely that the next release of DeepSkyStacker will not do so. |
| DeepSkyStacker 3.3.2 Oct 10, 2012 | Version 3.3.2 has fixed the No Alignment option was looking for stars and was failing when less than eight stars were detected, now it does need stars to work. |
