Questions tagged [nodata]

"NoData" is a term for null values in raster datasets.

Filter by
Sorted by
Tagged with
6
votes
2answers
2k views

Setting transparency for no data in raster in geoserver

I have a raster published in my geoserver with default raster style as below <NamedLayer> <Name>default_raster</Name> <UserStyle> <!-- Styles can have names, titles and ...
1
vote
1answer
25 views

Finding“NoData” area/percentage using ArcGIS Desktop?

I have a RGB raster that has been processed to remove cloud/shadow coverage and then put in a mosaic with other RGB rasters to fill in the missing gaps. Unfortunately all the gaps have not been ...
1
vote
0answers
16 views

NoData values in soil wetness index

I would like to know why I am getting no data pixels in my soil wetness raster, since none of the source rasters used to calculate the SWI have no data values. method I used: soil data from HWSD FAO ...
1
vote
0answers
48 views

Raster nodata = -3.4028234663852886e+38 [closed]

I'm very new to raster manipulation, and I'm getting a nodata value of -3.4028234663852886e+38 when importing USGS NED 1/3 arc-second n41w074 1 x 1 degree IMG using rasterio on Python. What is it ...
3
votes
0answers
60 views

“Clip Raster by Mask Layer” produces zero values (and not Nodata) outside mask boundaries

This is my first question here. I have a big raster of the world's nighttime lights and want to clip it down to the Adm0 of a country: In order to do so, in QGIS 2.18 what I do is using the Clipper ...
1
vote
0answers
16 views

NoData cells appeared in segemented raster

I am trying to classify an aerial image of a dike into grass and weeds. I used an aerial RGB image of 10 cm resolution being a TIF file. This aerial image is cleaned and contains no gaps. Only outside ...
0
votes
1answer
213 views

Google Earth Engine - how to set masked pixels to 'noData'

Lets say I have a region of mangrove forests (from a classified Landsat image) and I mask out all non mangrove pixels. I view this as a layer on the map and it shows the mangrove forests on the map ...
2
votes
1answer
65 views

Reducing file size by not storing no-data points

I have to compute sea wave forecast for large period of time. Land information is of no use here. Is there any file format that allows to not store no-data/fill values for land area to reduce file ...
0
votes
0answers
278 views

Getting GDAL Color distortion around nodata value stitching?

I am trying to extract JPEGs from SID images using GDAL. I ran into a an issue where black lines were present and figured out that it was a nodata issue, so I added -src/dst/vrt nodata arguments and ...
2
votes
2answers
600 views

Filling NA gaps in raster with R?

I have soil data rasters from SoilGrids.org that have some small holes with NA cells (White spaces in the image) that I want to fill using some interpolation method to get a more spatially continuous ...
0
votes
0answers
35 views

Limiting sharp drop off of coastal DEM raster where there is no data using QGIS?

I'm stitching numerous tiled DEM's using Build Virtual Raster and then 'Align raster' function within QGIS 3.6 Original DEM has no data for sea area as expected: I get sharp drop off on coastal/...
1
vote
0answers
40 views

Importing 16-bit data into Google Earth Engine

I am trying to import 16-bit data into Google Earth Engine. I get this error. No data value 65536.0 cannot be applied to band #0 of type Integer<0, 65535>. No Data is 65536 I tell it that ...
1
vote
2answers
87 views

MrSid nodata cells in Lizardtech

I have an odd shaped (not square) raster .tiff file that I converted to MrSid using Lizardtech's GeoExpress. It converts the nodata to black. This is applying a value to no data. Eventually I want ...
1
vote
1answer
140 views

Mapserver / QGis and DEM GeoTIFF different nodata values behaviour

I Have a problem with novalue datas in my DEM… This is the workflow I did: my DEM datas are in multiple Arcgis ASCII grids… Each .asc files have a header containing "NODATA_value -99999.00". I ...
1
vote
2answers
285 views

Inserting nodata value using GDAL?

I'd like to edit the nodata values in several raster files, but big number of these file doesn't have any nodata value defined, there is nothing to edit. I'v tried the gdal_translate -a_nodata ...
1
vote
0answers
24 views

gdal_merge novalue

I managed to run gdal_merge for multiple geotiles (jpeg). I am using the following options: command = "gdal_merge.py -init 0 -a_nodata 0 -co COMPRESS=LZW -co BIGTIFF=YES -o "+out_bez+" -of gtiff " +...
0
votes
1answer
91 views

QGIS 3.4 Stream delineation problem, lines running too far into ocean

I am using QGIS 3.4.4 Madeira version trying to delineate the stream and catchment areas of a small Bay in Honduras based on the technique of Hanz van der kwast tutorial "Stream and Catchment ...
2
votes
2answers
1k views

How to create a TIFF file using GDAL from a numpy array and specifying NoData value

I have some tiff files I obtained from splitting a bigger tiff file using gdal translate. The border tiff files have some nodata values, which I can see in numpy as number 15. I want to manipulate ...
0
votes
0answers
34 views

Filling NoData around bridges in DEM

Is it possible to fill no data around bridges without pixels blurriness (see picture). I use Elevation Void fill function, also tried in qgis No data filling and Grassgis r.fillnulls. I know, that I ...
3
votes
1answer
458 views

Setting raster values to NoData when raster does not have valid statistics?

I have a floating point raster with some values of 99999 that I want to set to NoData in Arc 10.2.2. I've tried using the SetNull dialogue box, the SetNull arcpy function, and the Raster Calculator ...
3
votes
0answers
59 views

Problems with DEM exporting after Elevation Void Fill function use

I filled nodata values in DEM by Elevation Void Fill function, everything was ok, but when I exported it, the raster looks different (see picture above), how can I solve this problem? I also tried r....
0
votes
0answers
100 views

How delete delete or mask nodata 0 value in the mask

I have raster (with 5 bands) and shapfile in the same projection. I do this script for rastersize and do mask and clip raster or crop raster with mask but I need to have just clip raster without black ...
1
vote
0answers
59 views

Raster values shows no data when using identify features tool

I used vector to raster function in QGIS, to convert some points with different values to raster. I tried to use the "Identify Features" to check values for each raster box. The values shows no data ...
2
votes
1answer
462 views

Use gdal to set multiband raster values to no data

I need to set a 3 band multiband raster (GeoTIff) where band 1 = 0 AND band 2 = 0 AND band 3 = 0 then this is no data (0,0,0 is No Data). Not OR in each band but AND across the 3 bands. I think it is ...
1
vote
2answers
7k views

Adjusting extent of raster using ArcGIS Desktop?

The coloured file contains landuse information and it needs to have the same number of columns and rows as the DEM in the background for further processing. I can't get it to work - "clip" and "...
3
votes
0answers
134 views

How do I fill Landsat 7 SLC gaps using QGIS?

I am currently using the QGIS 3.4.0 Raster -> Analysis -> Fill nodata (a tool for Landsat 7 data). I am using the directly downloaded USGS tiff band files with corresponding gap mask band tiffs ...
2
votes
0answers
551 views

Make “Nodata” transparent in raster - Mapfile/Mapserver

I have a raster and I'm trying to make it display in Openlayers2, using Mapserver 7.0 in backend. My problem is, I think, that because the online map is not the same projection as my data, Mapserver (...
1
vote
0answers
77 views

How can I stop single pixel nodata values propagating through a tile pyramid when using gdal2tiles?

I am using gdal2tiles_parallel.py to generate a tile pyramid from a single geotiff with nodata value set. I have noticed that if I have a small hole in the original geotiff (say single pixel), then I ...
1
vote
0answers
54 views

rasterio - nodata per band [closed]

I am looking at a way to specify a different nodata value for each band in rasterio. I tried to: use the nodata key in the profile with a tuple or list of nodata values, set the nodatavals attribute,...
2
votes
1answer
715 views

Using python gdal.BuildVRTOptions()

I want to define no data values when working with gdal.BuildVRT(). According to the gdal.documentation http://gdal.org/python/osgeo.gdal-module.html, by creating a gdal.BuildVRTOptions (srcNodata=-99, ...
4
votes
2answers
582 views

Interpolate smoothly nodata values in QGIS

I have a DEM raster where all the buildings have been extruded and now contain "nodata" values. I'd like fill the holes and get a nice and continuous surface (which would approximately correspond to ...
0
votes
0answers
32 views

Polygon interpolation neighbour average?

I am trying to estimate empty values based on a polygon layer we received from another study. Is there a way to calculate an average value for polygon A based on neighbours B,C, etc that border it? I ...
0
votes
0answers
56 views

How to preserve NoData areas when changing data type in GeoTiff with QGIS or gdal_translate?

I have a float geotiff raster with values 0, 1 and 2, along with a nodata area. I'm trying to convert the file type do Byte but I'm not being able to preserve the nodata area. It gets converted to 0 ...
0
votes
1answer
341 views

Filling no data value in raster using ArcGIS Desktop?

I have a raster with no data values, I want to give them values according to values around them. If a no data pixel is surrounded by 8 pixels whose values are 1 then the no data pixel should adopt ...
0
votes
0answers
42 views

Set multiple values to nodata - Erdas Imagine 2015

I am having trouble with the data ranges in the Landsat 8 surface reflectance product which I downloaded from USGS. The Lansat 8 surface reflectance handbook says the valid range is 0 - 10,000 range ...
0
votes
1answer
180 views

Meaning of NULL when using condition in gdal_calc

I am confused with the results of using a condition in gdal_calc. Initially I thought that gdal_calc was setting pixels to nodata where a condition is not met. In the documentation (http://www.gdal....
3
votes
0answers
59 views

Raster NoData Value

So over the years working with elevation and image rasters in various formats I always kind of ignore the value of No Data. I usually just let the software/vendor/someone else decide on the value for ...
0
votes
0answers
44 views

The SetNull tool does not correctly change “-9999” into NODATA

I am using ArcMap 10.5.1 and .tif raster data. When I executed the SetNull tool to convert all "-9999" values into NoData, the range of values in the output raster was greater than that in the ...
2
votes
0answers
45 views

NoData and Multiband Calculations

I was recently trying to perform some band math calculations in multiband images. I have a big chunk of images witch contains more than 300 bands (dates) each. So I first choosed ENVI to do this ...
3
votes
0answers
68 views

NODATA on MapServer

I am trying to generate a DEM mosaic to publish via a WCS using MapServer. Unfortunately I can not remove the NODATA. In MapServer's own tutorials and discussion groups suggest PROCESSING "NODATA = 0",...
2
votes
1answer
222 views

How do I change the extent of a raster file in ArcGIS in order to remove nodata values?

I am currently working with a netcdf file which I export to a GeoTiff and then layer over a 3D globe, the problem is a get a white line showing up at the dateline, straight through the pacific. When I ...
3
votes
1answer
531 views

Raster merge leaves gap where one file has no data

So I gave up on using the Raster|Misc|Merge... command in QGIS because it always crashes. I tried using the merge tool from the GDAL/OGR Processing Toolbox instead. That runs OK, but it puts a gap ...
1
vote
0answers
165 views

GDAL API: GDALPolygonize - nodata

I am attempting to polygonize a raster using GDAL C API. The input rasters can contain nodata pixels. My current method (see the code below) produces a new polygon vector, but the output also includes ...
0
votes
1answer
81 views

Writing no_data_value within jpeg2000[kdu] with gdal_translate

I would like to specify a NO_DATA_VALUE within a JPEG2000 file (I use the JP2KAK driver). When I call gdal_translate -of JP2KAK -co QUALITY=100 input.vrt ouptut.jp2 , I get an aux.xml file alongside, ...
1
vote
1answer
1k views

GEE: How to transform masked values (NODATA) to -9999?

How can I transform NoData (masked) values to a value? When the image is mapped, there are a lot of values that are masked and I would like to get a value (-9999) on that masked pixels. var region = ...
0
votes
1answer
102 views

Is the cell size dependent on the number of features for the Euclidean Distance tool?

I have attempted to run the Euclidean Distance tool, using ArcMap 10.5.1, on a feature class of 50 points (hospitals), but I received an invisible output. Using 'Identify' I get 'NoData' for the pixel ...
1
vote
1answer
191 views

QGIS - Issue with No Data Value Pixel is changing only in header of ascii

I have changed the No Data of a raster Forest.asc into No data = 0 using Raster -> Conversion -> Translate option in QGIS. So, when I add the output raster layer Forest_1.asc in QGIS and check for ...
0
votes
1answer
1k views

Setting zero values to “NoData”?

In ArcGIS Desktop I have a slope raster and calculated mean slope per watershed for a fish habitat model. There are zero ("0") values in some subcatchments where no information was available to ...
0
votes
2answers
211 views

Completely removing no data values from raster using ArcPy?

I have a layer called addLayer0 which is largely filled with nodata values. for l in list_dfs: l.panToExtent(addLayer0.getExtent()) where list_dfs is a list of all dataframes in the ...
4
votes
1answer
2k views

Filling/replacing nodata values of a raster layer in R

Is there a way to fill my NoData values in R? I have a raster that has several nodata pixels, which looks like this: (each white dot has no data) For the moment, the no data values are assigned -...