LabStretch2

Photo & Video

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

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.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Updated to Xcode 11.

Version 1.5

The developer, Robert Mark, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy .

  • No Details Provided

    The developer will be required to provide privacy details when they submit their next app update.

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Robert Mark
    Size
    • 14.8 MB
    Category
    • Photo & Video
    Compatibility
    Requires iOS 9.1 or later.
    • iPhone
      Requires iOS 9.1 or later.
      • ⁨iPhone 5S⁩
      • ⁨iPhone 6⁩
      • ⁨iPhone 6 Plus⁩
      • ⁨iPhone 6S⁩
      • ⁨iPhone 6S Plus⁩
      • ⁨iPhone SE (1st generation)⁩
      • ⁨iPhone 7⁩
      • ⁨iPhone 7 Plus⁩
      • ⁨iPhone 8⁩
      • ⁨iPhone 8 Plus⁩
      • ⁨iPhone X⁩
      • ⁨iPhone XS⁩
      • ⁨iPhone XS Max⁩
      • ⁨iPhone XR⁩
      • ⁨iPhone 11⁩
      • ⁨iPhone 11 Pro⁩
      • ⁨iPhone 11 Pro Max⁩
      • ⁨iPhone SE (2nd generation)⁩
      • ⁨iPhone 12 mini⁩
      • ⁨iPhone 12⁩
      • ⁨iPhone 12 Pro⁩
      • ⁨iPhone 12 Pro Max⁩
      • ⁨iPhone 13 Pro⁩
      • ⁨iPhone 13 Pro Max⁩
      • ⁨iPhone 13 mini⁩
      • ⁨iPhone 13⁩
      • ⁨iPhone SE (3rd generation)⁩
      • ⁨iPhone 14⁩
      • ⁨iPhone 14 Plus⁩
      • ⁨iPhone 14 Pro⁩
      • ⁨iPhone 14 Pro Max⁩
      • ⁨iPhone 15⁩
      • ⁨iPhone 15 Plus⁩
      • ⁨iPhone 15 Pro⁩
      • ⁨iPhone 15 Pro Max⁩
      • ⁨iPhone 16⁩
      • ⁨iPhone 16 Plus⁩
      • ⁨iPhone 16 Pro⁩
      • ⁨iPhone 16 Pro Max⁩
      • ⁨iPhone 16e⁩
      • ⁨iPhone 17 Pro⁩
      • ⁨iPhone 17 Pro Max⁩
      • ⁨iPhone 17⁩
      • ⁨iPhone Air⁩
      • ⁨iPhone 17e⁩
    • iPod touch
      Requires iOS 9.1 or later.
      • ⁨iPod touch (6th generation)⁩
      • ⁨iPod touch (7th generation)⁩
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © Rupestrian CyberServices 2015-2020
  • Privacy Policy

    • You Might Also Like