PTLens is described as 'Software that correct lens pincushion or barrel distortion, chromatic aberration, vignetting, and perspective in normal and fisheye lenses' and is an app. There are more than 10 alternatives to PTLens for a variety of platforms, including Windows, Mac, Linux, iPhone and BSD apps. The best PTLens alternative is GIMP, which is both free and Open Source. Other great apps like PTLens are Glimpse Image Editor, showFoto, DxO ViewPoint and XGimp.
GIMP delivers powerful functionalities for photo retouching, image composition, and format conversion. As a versatile tool, it serves as both a simple paint program and a high-end retouching suite, and offers batch processing for mass image tasks in an accessible open-source platform.
Glimpse is an open source image editor based on the GNU Image Manipulation Program. The goal is to experiment with new ideas and expand the use of free software.
You can use it to view your photographs and improve them. Showfoto is the standalone image editor of the digiKam project.
Professional perspective correction tool fixing lens distortion, horizons, and leaning buildings. Auto lens profiles, content-aware resizing, portrait reshaping, batch processing.
XGimp is a version of gimp that works on a mobile. It can be used as a paint program, image editor or a photo retouching program.
ShiftN is an intelligent tool capable of analyzing photos and fixing the line distortion (line convergence) effect automatically or with minimal user’s input. Batch processing. The software analyzes the source image, detects vertical lines and performs the correction, making...
Ultimate Paint is a full-featured 32-bit Windows graphics program for image creation, viewing and manipulation.
Photopainter is both a natural-media painting software and an image processing system at the same time.
Wizardbrush is a natural media painting software which has a lot of brushes and paper with realism style. You can create realistic picture with it. You can not only use it to paint pictures, but also handle your digital photos, even use it to teach digital painting and image...
WidsMob Retoucher is an excellent photo retouching program, which is able to reduce image noise, portrait retoucher, film pack, adjust effects, fish eye effects, vignetting and more other features to photos with ease.
Home Photo Studio is powerful and easy-to-use photo editing software offering a complete set of image manipulation tools. Thanks to a convenient interface and a detailed help system, the software is simple to learn but provides enough options to keep any photo enthusiast...
GimpLensfun is a Gimp plugin to correct lens distortion using the lensfun library and database.
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