Image Tools

Compress PNG files with palette quantization

Bulk resize and crop to consistent dimensions

Enlarge images with selectable scale factors

Automate repeated photo preparation steps

Combine photo edits, collages and captions

Apply image-processing filters through several interfaces

Apply focused corrections and image effects

Process and measure astrophotography images

Process JPEG files and their metadata

Read and write image metadata in many formats

Control capture, color and final photo output

Inspect, solve and stack astronomical images

Retouch photos and arrange collages

Process and analyze scientific images

Replace a background with a color or image

Cull photos and prepare contact sheets

View image volumes with overlays and selected regions

Build and reuse an adjustable stack of photo corrections

Explore DICOM data with 2D and volume processing

Compress website images as they are uploaded

Capture screen text and decode visible codes

Edit, compare and convert image files

Combine astronomical image layers and measure regions

Merge bracketed exposures into an HDR image