AstroEdit iOS App Manual

AstroEdit User Guide

This app was created to be easy to use.

This guide was written to be easy to understand.

The app costs $1.99

Open your image:

Stack and crop your astroimage in a favorite program.

Tap "Open" and select the image to process it.

Adjust Tweak:

Adjust the background of your image and remove gradient with the Black slider (Note: the night sky is not pure black!).

Control the overall brightness with the Bright slider.

Enhance the color with the Saturate slider.

Create a warmer or cooler look by adjusting the Temp slider.

Refine specific hues with the Tint slider.

Adjust Curve:

The histogram displays the distribution of light and dark pixels.

The higher the peak the more pixels are that bright.

Click and drag one or all of the numbered points for precise adjustments.

Sharpen Your Image:

Apply up to six layers of wavelet sharpening to enhance the crispness of details.

Control the amount of sharpening for each layer with the slider from 1 fine detail to 6 coarse details.

Sharpen stars and other fine details without affecting the background or introducing excessive noise.

Reduce Noise:

Eliminate unwanted grain for a clearer, more detailed image.

Adjust the smoothing with the Denoise slider. Be careful, too  much denoise removes details. In general, use layer 1 to remove grainy noise and use layer 2 to remove walking noise.

Save your image:

Once you're happy with your edits, tap "Save" to create a new file with your enhanced image.

Undo/Redo:

Tap "Undo" to reverse your last edit, or "Redo" to bring it back. 

Short Cut:

- Tap and hold to show original image. Release hold to go back to edited image.

- Double tap to restart from original image.

- Use 2 finger spread to zoom.