implement display of imagery (raster) histograms

Idea created by david.harbor on Mar 9, 2018
    Reviewed
    Score20
    • cruzpagan
    • KleebergHZG

    When teaching remote sensing or how to classify rasters, I find it is vital that students have access to the histogram of the data either in the dataset or in the current view (both would be helpful). Even in the help for Pro's Stretch Function, a histogram makes it clear how or why a percent clip routine is useful.

    From the Stretch help file

    Stretch function—ArcGIS Pro | ArcGIS Desktop 

    However, it is only possible to see histograms of integer continuous data, albeit poorly, in the symbology pane, but not for floating point or imagery data. 

     

    Thus, in my GIS and Remote Sensing class that now uses Pro, I have to apologize for Pro's lack of functionality and display histograms from other products, for example, showing atmospheric contributions to radiance distributions from ERMapper that we used years ago.

    from http://geology.wlu.edu/harbor/geol260/lecture_notes/Notes_rs_haze.html 

     

    Please put a window in the symbology pane (or if not that, at least make a geoprocessing tool or function) that displays a histogram for any raster (continuous, fp, or categorical), single band image (tif, ers, grid), or multiband image (tif, grid, ers, etc).  Optimally, it will have a DRA button that can be turned on such that when the focus changes, the histogram will adjust.

     

    Thanks

    David Harbor