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Image Actions

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Tony George edited this page Sep 17, 2017 · 3 revisions

Image Actions (Donation Feature)

Context Menu Actions

Note: This action will be visible only if the package 'polo-donation-plugins' is installed. This package is complimentary for users who have contributed to this project. You can make a donation for $10 or more via PayPal to receive the plugins by email.

Polo provides options to modify image files from the right-click menu.

  • Optimize PNG - Reduce file size of PNG images uisng pngcrush. File will be repacked using better compression algorithms without loss of quality.

  • Reduce JPEG Quality - Reduce file size of JPEG images by reducing quality. File will be re-encoded to JPEG at quality level 90.

  • Remove Color - Convert to black and white (greyscale).

  • Reduce Color - Reduces saturation level (color). Useful for correcting photos that are over-saturated (too much color). Three levels can be selected - Light, Medium and Strong.

  • Boost Color - Increases saturation level (color). Useful for correcting dull photos that are under-saturated (less color). Three levels can be selected - Light, Medium and Strong.

  • Set as Wallpaper - Set the image as desktop wallpaper

  • Rotate - Rotate the image left or right, or flip it upside-down.

  • Resize - Resize the image to lower resolutions like 480p, 720p, etc. Aspect ratio will be maintained. Smaller images will not be upscaled.

  • Convert - Convert the image to other formats like PNG, JPEG, TIFF, BMP, ICO, etc.

Replace Original Files

These actions create a new file in the current folder. Original files are not modified. This can sometimes be inconvenient when working with a large number of files. There's an option in Settings > Advanced to replace the original file for each action. If selected, the original file will be deleted, and replaced by the new file on success.

Dependencies

Optimize PNG action depends on pngcrush which is available on most Linux distributions. Other actions do not depend on external tools.

You will be prompted to install missing packages when you try to use an action that depends on a missing utility.

Usage Tips

Boost Color

The Boost Color option can be used on dull photos to make it more vivid and colorful. Few samples are displayed below:

Original Image ⬇

Image > Boost Color > Strong ⬇

Original Image ⬇

Image > Boost Color > Medium ⬇

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