LabStretch2 vs Mirror Lab

LabStretch2 is a real-time image enhancement app, designed specifically for rock art researches to use in the field. Images can be acquired from within the app, or loaded from the iPad photo library. They can then be enhanced to see very faint color differences. Unlike the iPad version, LabStretch2 uses 2 screens, Settings and Image. The image thumbnail is also a Run button. For a description of the method, please see http://www.rupestrian.com/labstretch.html Usage Notes 1. Images are acquired by Capture Image, which takes a photo from within the app, or Import Image, which selects a photo from the camera roll. If you want to keep the image, use the camera and import the image from the camera roll. 2. Click Run. The image is downsampled and converted to Lab color space. The initial spread is applied. Try OffsetToggle to apply an estimated centering of the histogram before the multiplier (spread) is applied. Select the best toggle and then adjust the sliders. Run after each change. If the enhanced image is almost all one color, work with the offsets. 3. You can use the iPad screen capture to save results. 4. Use Save to capture the full-size enhanced to the camera roll. This requires considerable calculations and, depending upon your CPU speed, can take a minute or more. For assistance, please contact rockart@infomagic.net.

Mirror Lab aims to be the most fun, easy to use and powerful photo-editing app to creatively enhance pictures, make mirror photos, kaleidoscope images and distort faces and scenery. Mirror Lab now comes with a powerful animation module. Create smooth videos with parameter interpolation between key frames (be sure to activate video from the app settings). Effects Choose from 50+ filters, each with multiple fine-tunable options. - classic symmetries: horizontal and vertical reflections - ripples, whirls, stretching and other distortions - kaleidoscopic and fractal effects - 3D effects - tiny planet effects - triangulation, pixel sort and halftone effects - shape cut-outs, including concentric iterations - glitch art friendly filters such as stripes and broken glass effect - adjust your image's brightness, contrast, saturation, vignetting and more - swipe through 40+ preset options to browse through possibilities in an instant Parameters All filters come with several parameters to adjust, allowing for a large range of varied results. Effects can usually be simply placed by simple touch-drag for position and double-touch-drag for size. Some of the most common parameters you will find: - intensity of effect - dampening of effect (the further from the center of the effect, the lesser the intensity) - rotation angle - aspect ratio Ease of use Compose filters for endless creative options. The + button reapplies an effect immediately - some effects like to be stacked! The app has a powerful undo system allowing you to track back at any time. Please note that the top and bottom toolbars can scroll. There are a lot of effects to the right of the bottom bar! PRO Version Available as an in-app purchase, the PRO version comes with extra filters, extra parameters, higher resolutions and lossless file saving (PNG).