Questions tagged [bit-depth]

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

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Converting 64 bit raster to 16 bit

I have drone captured aerial image that I'd like to add as a layer to a project on GIS Cloud. The file is currently 64 bit which is not supported on GIS Cloud. Using QGIS I ran Raster-Conversion-...
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2 answers
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What is the standard approach to store dates as pixel values in raster? [closed]

I have a raster, where the value of a pixel should represent the date at which that pixel was deforested. Dates ranging from 2015 until today. I need resolution to be at the level of day. I would like ...
staf's user avatar
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Unsigned integer TIFF containing negative NoData value?

Background: At 10.8.1, I have an 32-bit, unsigned, integer TIFF raster. The NoData value is, as expected, 4,294,967,295 (2^32-1). The values in this raster range from only 0-7, which makes a 32-bit ...
Stu Smith's user avatar
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What is lost when converting 12 bit imagery to 8 bit?

SPOT 6/7 satellite imagery is captured with a dynamic range of 12 bits per pixel per channel (ref). However almost all of the SPOT imagery I have seen in use has been 8 bits per channel, and split ...
matt wilkie's user avatar
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Serving 16 bit floating point with GeoServer?

I gave created a GeoTIFF file with python/gdal as 16 bit floating point (to save space), using -999 as noData value. In GeoServer (v2.15.2), I have defined an SLD color style for this layer. However, ...
Jvg's user avatar
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1 answer
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Why does Earth Engine report Sentinel-2 pixel depth as 16-bit when it is 12-bit?

When accessing Sentinel-2 through Earth Engine search bar, the info page that pops up reports the bands as UINT16 when in reality they are 12-bit. Am I interpreting this incorrectly?
user154590's user avatar
3 votes
2 answers
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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 ...
pafi's user avatar
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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 ...
Shane's user avatar
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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 ...
Dolby's user avatar
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6 votes
2 answers
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GeoTIFF smallest bit depth value

I have a GeoTIFF (RGB) 8-bit per channel file that was classified to four classes. Theoretically I could save the file as a 3-bit and make the file significantly smaller. For my application files size ...
icypy's user avatar
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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 ...
Gisnoob123's user avatar
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1 answer
2k 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 ...
HP-Nunes's user avatar
2 votes
3 answers
2k 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 ...
Patribus's user avatar
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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 ...
Sjieke's user avatar
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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 ...
Ian Schelly's user avatar
1 vote
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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 ...
purelyp93's user avatar
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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 ...
Ben Evans's user avatar
2 votes
0 answers
432 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 ...
Juwairia's user avatar
6 votes
2 answers
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 ...
Jeffrey Evans's user avatar
1 vote
2 answers
845 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 ...
Aaron's user avatar
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4 votes
1 answer
699 views

Pansharpening radiance/reflectance of Landsat 8 in GRASS 7?

first at all, I have to say that I'm new GRASS user. I would like to make a pansharp in GRASS 7 with reflectance Landsat 8 bands. I have revised some related posts and blogs, and I didn't find out if ...
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