How to Reclassify and Convert Raster Image to Polygone Shapefile using ArcGIS 10.8
How to Reclassify and Convert Raster Image to Polygone Shapefile using ArcGIS 10.8
Summary
Reclassifies (or changes) the values in a raster.
Usage
•If a range of values is to be reclassed, the ranges should not overlap except at the boundary of two input ranges. Where overlapping occurs, the higher end of the lower input range is inclusive, and the lower end of the higher input range is exclusive.
For example, if two ranges are specified, such as reclassifying values 1 to 5 as 100 and values 5 to 10 as 200, an input value less than or equal to 5 will be assigned the value 100 in the output, and an input value that is larger than 5, such as 5.01, will be assigned to 200.
•From the tool, the remap table can be saved as an INFO table for future use with the Save option.
Use the Load option to reload remap tables you previously created with the Save button.
•It is recommended to only load tables previously saved by the Reclassify tool. The table format is specific and must contain the fields FROM, TO, OUT, and MAPPING.
•If the input raster has an attribute table, it will be used to create the initial reclassification table. If the input raster does not have an attribute table, you can run the Build Raster Attribute Table tool from the Data Management toolbox to build one before inputting the raster into the Reclassify tool. Otherwise, when you input the raster, a reclassification table will be created for it by first applying geoprocessing environment settings, such as Extent and Cell size, and scanning the raster.
When the input raster is a layer from the Table of Contents, the default reclassification table will import the unique values or classified break values as specified by the layer symbology. The current geoprocessing environment settings will be ignored when importing those values. Otherwise, the reclassification table will default to natural breaks with nine classes.
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