Clean, consistent PixInsight workspaces.

BatchSTFStretch

A selectable batch utility for making linear images visible without changing their pixel data.

• Lists all open main images with individual checkboxes.
• Includes Select All, Select None, and Refresh controls.
• Applies a linked RGB stretch to preserve relative channel balance.
• Applies an unlinked per-channel stretch when independent channel balancing is preferred.
• Resets the ScreenTransferFunction on the selected images.

ImageBatchManager

A wizard-led batch naming and save workflow for open image windows. It is especially useful straight after stacking, when mono master frames inherit long file names from the integration process, and it also handles OSC data through editable mappings.

• Guides rename, selection, save, reopen, and summary steps through a simple wizard.
• Batch-maps filename, caption, or view-id text to short filter names.
• Targets mono filter sets first, with default LRGB/SHO-style mappings plus NoFilter to OSC for one-shot colour images.
• Stores editable user mappings between sessions.
• Batch-appends PixInsight-safe processing suffixes to current names.
• Renames one selected image with an ad-hoc identifier.
• Saves renamed images, reopens saved output, and can close or collapse sources.
• Overwrites selected files using the current open image name and source folder.

MatchOpenImageSizes

A batch visual consistency tool for comparing open images. Choose the image that already looks right, then bring the rest of the workspace into line.

• Uses the selected image window as the reference.
• Copies the reference zoom factor to all other open images.
• Copies the reference window frame size when PixInsight exposes writable geometry.
• Resamples images whose pixel dimensions differ from the reference.
• Leaves the reference image unchanged.
• Supports PixInsight process icons for repeated reference-based use.

BatchSTFStretch

• Select images: tick only the open images whose screen display should change, or use Select All and Select None.
• Choose Linked: use one shared stretch for RGB channels to preserve their relative balance.
• Choose Unlinked: calculate each RGB channel independently to neutralize strong channel imbalance in the display.
• Apply Auto Stretch: updates only the selected images' ScreenTransferFunction display; pixel values remain unchanged.
• Reset Screen Transfer: returns the selected images to an identity screen transfer.

ImageBatchManager

• Choose a mode: the wizard starts by asking whether to use filter mappings, append a suffix, or rename one image. Apply stays disabled until a mode is selected.
• Edit mappings: add, update, or delete rows in the mapping table. More specific matches win before generic ones.
• Mono first, OSC ready: filter renaming is aimed at mono master lights such as L, R, G, B, H, O, and S, but OSC users can map NoFilter or their own camera naming convention to OSC.
• Use valid names: output identifiers must start with a letter or underscore and only contain letters, digits, or underscores.
• Select the batch: checked preview rows are processed. Collapsed windows are unchecked by default when PixInsight exposes that state.
• Apply Rename / Append: batch-renames open images. If saving is not enabled, images are not closed, collapsed, or saved.
• Save images after renaming: saves the renamed output to the selected folder and can reopen saved images.
• After save: leave, close, or collapse selected source images.
• Single Image Rename: select exactly one preview row, enter an ad-hoc name, and rename both the side tab and top caption.
• Save & Overwrite Selected: choose Save selected images only on Step 1, tick the images on Step 2, then save them back to their source folders using their current open image names.
• Save newly created images: if a selected image has no source path because it was created inside PixInsight, choose one destination folder when prompted. Images that already have source paths still save in their original folders.

MatchOpenImageSizes

Use this companion utility when open images need to match a selected reference image. It copies the reference zoom and attempts to match the frame size where PixInsight exposes that geometry.

• Pick the reference: click the image window with the size, zoom, and dimensions you want to keep.
• Run the utility: open Script > Chapel Astro Utilities > MatchOpenImageSizes.
• Confirm the summary: the script reports the reference image, pixel size, zoom, and frame size before making changes.
• Let it match the rest: every other open image is batch-matched to the reference zoom and frame size.
• Understand resampling: if another image has different pixel dimensions, it is resampled to the reference width and height.
• Continue into naming: after matching, run ImageBatchManager separately from the same Chapel Astro Utilities menu.
• Use process icons: drag the New Instance triangle to the workspace, then drag that process icon onto an image to use it as the reference.
• Know the limit: if PixInsight does not expose writable window geometry, the script still matches zoom and dimensions but may not be able to copy the frame size.