ColorEnhance Wizards ER Mapper 7.0

ColorEnhance Wizards

Colordrape wizard

Create several different types of colordrape images, or images that combine color with shaded relief. This wizard gives you fast access to many different combinations and options. Typical input data types includes DEMs, bathymetry, and geophysical data. Create images using Standard, Softened, Wet Look, Shiny Look or Metallic Look colordrape techniques. Select any ER Mapper color table, or various sets of colors for Wet and Shiny looks. Select predefined shade elevations or azimuths, or define your own custom shading. Invert color or shaded image data values if desired, or median filter shaded data to reduce noise. Process a subset of the image area, and specify a wide variety of contrast enhancements. Fine tune all enhancements and options, and immediately see the results.

Color enhancement wizard

Perform several different types of color space enhancements on an RGB image These enhancements are designed to make the image more pleasing to the eye or enhance the overall information content to aid interpretation. Use Hue Saturation Intensity (HSI), Brovey (Chromaticity) Transform, Direct Decorrelation Stretch (DDS), Intensity Convervation DDS, or Hybrid Contrast Stretch enhancement.

Resolution merge wizard

Merge or “fuse” an RGB image with a higher resolution panchromatic image to create a hybrid image with the RGB color and panchromatic spatial resolution. Typical examples are merging Landsat TM 30-meter data with SPOT Panchromatic 10-meter data or SAR imagery. Use Red Green Blue Intensity (RGBI), Hue Saturation Intensity (HSI), Brovey Transform, Smooth Filter Intensity Modulation (SFIM), High Pass Filter (HPF) Additive, or Transparency Merge fusion techniques. RGBI and HSI techniques include histogram matching Pan intensity to RGB intensity, averaging Pan and an infrared band for intensity, and method to convert RGB to Intensity. Process a subset of the image area, and specify a wide variety of contrast enhancements.

SFIM pan sharpening wizard

Use this wizard to pan sharpen a multi-spectral image with a higher resolution panchromatic image. Similar to ‘resolution merge wizard’ but uses different processing logic.

Natural color wizard

Convert typical “false color infrared” images into simulated natural color images, so vegetation appears in green instead of red. Typical data types for this transformation include SPOT XS, Landsat MSS, color infrared (CIR) airphotos, or any data that does not contain a visible blue wavelength band. Use the Simple Weighted Average (WTA) technique to generate natural color, or enhance WTA colors using Direct Decorrelation Stretch (DDS) or Brovey Transform techniques. Generate a vegetation (NDVI) mask to apply the natural color transformation only to vegetated areas, or to modify the transformation effects. Process a subset of the image area, and specify a wide variety of contrast enhancements.

Hope it’s very usefull for you….

Source : ER Mapeer 7.0 User Guide Tutorial

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