About conversion of data types

Microwave Toolbox Problem Reports
1

I have a floating point raster (standard deviation in db) and want to rescale it from 0 to 255.

grafik.png1677Ă—877 980 KB

When I use Raster > Data Conversion > Convert Datatype and select uint8 as an output and linear stretch (95%) i get the following pattern:

grafik.png1671Ă—880 994 KB

I wonder where these gaps come from. I chose another no data value (0 and 255) but it had no effect on the data.

Any ideas?

2

The image looks fine, click the red text to compute accurate histogram, could be a rendering error. Also check the histogram in the “Analysis” menu.

Last option would be reopening the output or even redoing the data conversion, if it persists, you have found a bug, yet I would guess it is a rendering error of the histogram.

Petr

1 Like
3

well, that was easy :innocent:
Thank you for this hint - the properly calculated histogram looks fine.

grafik.png938Ă—539 29.4 KB

1 Like