Svenesis Multiple Histogram Viewer

Version 1.1.0 – GPL-3.0-or-later

Displays linear and auto-stretched images side by side with RGB histograms, 3D surface plots, and detailed statistics.

Multi-column display: original data alongside stretched versions in up to 4 columns
Per-channel histogram analysis: RGB, R, G, B, and luminance individually
3D surface visualization for detecting gradients and vignetting
Interactive pixel sampling: click shows exact ADU values and histogram position
Comprehensive statistics: Min/Max, Mean, Median, Std Dev, IQR, MAD, percentiles
Logarithmic scaling to reveal faint signals
Support for compressed FITS files (.fz, .gz)
Load up to 2 additional stretched FITS files for comparison

Load FITS image → linear and stretched views immediately available → load stretched FITS for comparison → switch channels → inspect pixels.

numpy, PyQt6, Pillow, astropy, matplotlib