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Mosaic dataset statistics doesn't match up with a raster data having signed 8 bit pixel depth

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04-27-2023 08:45 AM
by Anonymous User
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I am having a problem with the mosaic dataset showing an incorrect data range (max:127, min: -128) for a signed 8-bit Tiff file (maxi: 31, min: -31, see the image below). There was no problem when I added the original Tiff file which was a signed 16-bit. However, it didn't work well when I publish it online to visualize time series. I have 50 Tiff files in a mosaic dataset so no wonder.

MakikoShukunobe1_0-1682610082147.png

My first question would be am I doing wrong converting signed 16-bit to signed 8-bit? Considering the value range of the raster data (max: 31, min: -31) I thought signed 8-bit is ok to use (Bit depth capacity for raster dataset pixels ), but the mosaic dataset statistics range is incorrect.

If I am not doing wrong for pixel depth conversion, how make the mosaic dataset statistics correct? 

If I need to keep the signed 16-bit pixel depth, is there a way to make a better performance to show time series on the web?

I would very much appreciate your help.

 

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