HDR-Merge vs PhotomatixCL

HDR-Merge is a web platform for AI HDR photo enhancement and 360° stitching. It detects exposure sets, combines bracketed images, and applies tone mapping automatically. Each HDR merge accepts three to nine exposures, and the service supports both RAW and JPEG files. Optional AI processing adjusts color, contrast, and detail. HDR images can be stitched into 360° panoramas in the cloud. HDR-Merge also describes bulk processing for hundreds of bracketed sets, with batches of 1,000 or more images. The browser-based service requires no installation or GPU and works on any device with a browser. AI-enhanced outputs are listed at 4K or 2K. Plans start at $27 a month, with no free plan but a free trial. Starter includes 150 credits monthly; Pro includes 400 and bulk processing; Agency includes 1,800, unlimited bulk processing, and 24/7 phone and email support.

PhotomatixCL is a command-line interface for adding HDR image processing to automated imaging workflows on Linux, macOS, and Windows. It merges exposure-bracketed photos into HDR images and processes them with tone mapping or exposure fusion. Image alignment, ghost removal, HDR presets, and JPG, TIFF, or EXR output are included. Inputs can come from a computer or local network, or be downloaded from a web server. Each run handles one bracketed set; the bundled PhotomatixCL-Driver can process folders of sets in batches. The CLI is designed for automated workflows on cloud or local servers and does not require API integration code. Linux downloads include Ubuntu, a statically linked universal build, and an ARM build for Debian; the universal build omits lens correction. Free-plan tracking requires internet access, and the CLI fails during outages unless used in trial mode. Trial runs do not use credits but add a Photomatix watermark to output images. The listed plans include free use and paid options; paid pricing is listed from $39 one-time.