Questions tagged [bit-depth]

A "quantity which estimates quality of a signal quantization" [Wikipedia].

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Detecting 12bit images in 16bit

Setting For the purpose of a machine learning algorithm I'm tying to automatically scale images of arbitrary bitdepth to unit interval, i.e. I want to map pixels from [0,2x] to [0,1] simply by ...
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0answers
50 views

QGIS 2.18 SAGA Change Data Storage

I tried to use Change Data Storage to change the bit depth of some rasters, but it doesn't work or gives me vague errors I first tried to batch convert some rasters to unsigned 1 byte interger, I ...
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1answer
31 views

Difference in Bit-depth in Satellite Images

I have DMSP/OLS and VIIRS satellite images. For the 1st image the bit depth is 8, for the 2nd image is 32. I want to make intercalibration between those images. Will it cause a problem due to ...
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2answers
632 views

Geotiff smallest bit depth value

I have a geotiff (RGB) 8-bit per channel file that was classsified to four classes. Theoreitcally I could save the file as a 3-bit and make the file significantly smaller. For my application files ...
2
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1answer
1k views

How can I create a 16bit PNG heightmap in QGIS?

I am new to QGIS or any GIS software. I have been using a totalstation to measure a hillside and I am trying to convert the point cloud to a 16bit png heightmap that I can use in Unreal Engine 4. I ...
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1answer
691 views

ArcGIS Raster Calculator modifying bit depth of outputs?

I am trying to multiply rasters (converted from polygons and polylines) whose values I have reclassified into one class respectively with a value of 1. Then I input the weighted average equation in ...
2
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3answers
609 views

Convert 12bit to 16bit geoTIFF

I just bought some SPOT6/7 satellite imagery. This material has a 12bit format, however, the software I have to import it to just accepts 8, 16 or 32 bit files. How can I convert my geoTIFF files to ...
3
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2answers
383 views

Is Sentinel-2's JPEG2000 data using signed 15bit or unsigned 15bit pixels?

I have been working with Sentinel-2 JPEG2000 data and need to extract individual pixels for processing. One issue I have not been able to find an answer to is how the pixels are stored. I was able to ...
3
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1answer
259 views

Getting different pixel depths from output raster when done in ArcMap versus Arcpy?

When I use 'Plus' in Spatial Analyst to add together two 8-bit unsigned rasters (pixel values 0-100) the output raster is 8-bit unsigned (pixel values 0-200) but when I try and do the same thing ...
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0answers
31 views

Adding .tif files with various bit depths to a raster mosaic

So I have a few georeferenced .tif files that I need to add to a raster mosaic, however the problem is that some of these are 8 bit unsigned TIFFs while others are 1 bit unsigned. After adding all ...
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0answers
310 views

Exporting a thematic raster in byte format to use with GUIDOS toolbox

I am trying to export some thematic rasters to use them with GUIDOS Toolbox (specifically the MSPA segmentation functions) - http://forest.jrc.ec.europa.eu/download/software/guidos/ GUIDOS requires ...
2
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0answers
330 views

Conversion of Polygon vector files to Raster GRID 8 bit unsigned integer

I am trying to convert a polygon shapefile layer into Raster GRID with 8 bits and which is unsigned integer. I managed to convert the shapefile in ArcGIS with the Arc Toolbox Conversion tools, but the ...
6
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2answers
2k views

How to force 1-bit raster output in ArcGIS 10.1 for Desktop?

Any ideas on how to force a 1bit raster output in ArcGIS 10.1? By default, ArcGIS is being very dense about recognizing pixel depth. I have a binary raster [0,1] and a mask raster [1] and they are ...
1
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2answers
544 views

How to reduce Polygon to Raster (Conversion) bit depth?

I have a polygon featureclass that I am trying to convert to raster format at a low bit depth (i.e. <8 bit unsigned). The FC contains 50,000 polygons which have five values: 1,3,5,7,9. I have set ...