Using the crop module is fairly straightforward. The desired crop is created by clicking and dragging with the mouse the area to retain. Fine-tuning can be accomplished by changing the X1, Y1 and X2, Y2 coordinate pair parameters.
8 quick-access crops are available to quickly achieve one of four popular aspect ratios. The button names ('3:2', '2:3', '16:9', 9:16') denote the aspect ratio, while the double minus ('--') or plus ('++') signs postfix denotes their behaviour;
A 'Color' button is available, which functions much like the Color button in the Wipe module. It is only available when Compose mode is engaged (e.g. luminance and chroma are being processed separately, yet simultaneously) and allows you to switch the view between the luminance and chroma datasets that are being processed in parallel. The later is useful if, for example, you need to crop stacking artefacts that only exist in the chroma dataset, but not in the luminance dataset. Because chrominance data always remains linear and is never stretched like the luminance dataset, a courtesy (non-permanent) AutoDev is applied, so you can better see what is in the chrominance dataset.
There are a few simple, but important, do's and don'ts to prepare your dataset for post-processing in StarTools.
The Stereo 3D module can be used to synthesise depth information based on astronomical image feature characteristics.
A 'Filter Mode' parameter selects the mode of the filter.
Central to the module, is the 'Digital Development' parameter, which controls the strength of the development and resulting stretch.
The module can also be used as swiss pocket knife for gamma correction, normalisation and channel luminance contribution remixing.
You can convert everything you see to a format you find convenient. Give it a try!