Questions tagged [mosaic]

A raster dataset composed of two or more merged raster datasets—for example, one image created by merging several individual images or photographs of adjacent areas.

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Mosaic function adding non-desired value to dataset in ArcMap

I am working with a land cover dataset, which is a 30m-grid multi-band dataset, with each band representing the data from a different year (ABoVE data, GeoTiff file). For the convenience, I used the ...
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28 views

Extracting image patch from Google Earth Engine

I am trying to extract an image patch from Earth Engine imagery. The location of the patch coincides with the edge of a single image, so I first mosaic two adjacent images to form a bigger image that ...
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Creating composite raster mosaic

I have multiple rasters of the same area and I want to mix them into a composite raster, with each of the said rasters becoming one band of this new image, But the input images are very large and I ...
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How to merge overlapping images with transparencies using rasterio

I'm currently using gdal.warp to merge several images to produce a mosaic. These images contain many transparent pixels, and I'd like that the composed image keeps the opaque pixels from all ...
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Using ArcGIS Pro ModelBuilder to iterate through folders and create mosaic

I am trying to create one mosaic from every month of the year. I have 3 folders with raster files for each month. So I have been trying to create 12 different mosaics from these files without success. ...
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Loading large amount (around 200GB) of rasters into mosaic dataset using ArcGIS Pro

I am using ArcGIS Pro 2.8.0 I have four folders with raster data over an area of approximately 8000 square km. Two folders contain rasters with 0.25 cell size (x and y), and two folders have 0.5 cell ...
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Mosaicking raster tiles with different color palettes

I want to create a mosaic of 35 rasters using gdal. Using gdalwarp --config GDAL_CACHEMAX 8000 -wm 8000 *.tif abk.tif I get a fairly small output file. But I've noticed that some colours are off. It ...
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Mosaic data looks like checkerboard using ArcMap

I have copied mosaic data from the external disk to the local disk. When I try to load the mosaic data into a new ArcMap document, it is displayed as a checkerboard. But if I first load the mosaic ...
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Is there a way to batch resample and mosaic/merge many large raster files at once?

I have over 400 large raster DEM files at 1 m resolution that I need to resample to 10 m resolution and merge/mosaic them all into one file. I am wondering if there is a way to do this all in one step ...
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ArcMap 10.7, Is it possible to mosaic rasters using a method that prioritizes rasters by the proximity to it OWN center?

I am working with older imagery that has been manually scanned, and as expected, the fidelity of the images is more reliable towards the centers of the images. There is a good deal of overlap in the ...
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51 views

Merge raster layer error, illegal size

I have an issue with merging several tiles. I am loading the original XYZ files into QGIS (works fine) and try to merge them afterwards yia Raster/miscellaneous/merge . If I only merge 2 tiles this ...
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Mosaicing rasters Rasterio vs GDAL

I want to create a mosaic using multiple tiles. Firstly I've tried GDAL using gdalbuildvrt + gdal_translate commands. Then I wanted to use Rasterio for creating mosaics. I've used rasterio.merge.merge ...
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Blank Output From Load raster in ArcCatalog

I did Load raster data in ArcCatalog, I wait until it finished, but when I opened the Output raster, I just got a White-Blank output, there isn't anything in there. What happend? And how I fix it? NB: ...
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Raster pixel aspect ratio gets distorted when exporting from Google Earth Engine

Problem: I have a mosaic of a Landsat 7 collection in Google Earth Engine that looks alright on display (pre-export-version) in the map window of the web app. However, when I export it, some pixels ...
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1answer
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Fixing Edge Gaps in ML Classification of Mosaiced Landsat8 Imagery using ArcMap

I have mosaic-ed four Landsat8 images in ArcMap to cover an area over and west of Denver and Colorado Springs, Colorado: LC08_L1TP_033032_20200406_20 LC08_L1TP_033033_20200406_20 ...
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1answer
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How put order in multiple raster file in RasterMosaic in FME? [closed]

I have couple of raster files which I want to mosaic in a specific order. How I can do that?
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Iterator not working for mosaic tool

I am trying to calculate rasters using a combination of the visibility and euclidean distance tools and iteratively sum them onto a target raster using the mosaic tool. The problem is it says the ...
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How to tile and mosaic spatial vector data in R?

Processing large vector data requires a way to tile the input data and mosaic the output. The following example only targets the tile creation and final mosaic step. Tiling the data has the reason ...
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Color-correcting/matching 4-band PlanetScope imagery

I've been trying to color correct/match 4-band (R, G, B, NIR), 3m resolution Planetscope surface reflectance imagery in order to create a mosaic for land-cover classification. At this point, I believe ...
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Issue using pyModis.createMosaicGDAL() on Debian

I'm currently trying to automate some data processing with MODIS data using pyModis but am running into an odd issue. I've developed a script that I've run locally just fine. It downloads all the ...
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What does this raster merging error code mean?

I was wondering if anyone could help me understand how to solve what this error message means and what I need to change to merge my DTM rasters with an asc extension. I am able to see the individual ...
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GRASS ERROR “raster not found” with i.image.mosaic tool in QGIS 3.10.10

I'm trying to mosaic multiple DEM files using the GRASS 7 'i.image.mosaic' function in QGIS 3.10.10, on a Mac. I keep getting the same error code and have not been able to figure it out. Details of ...
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gdal_translate GTiff drivers does not support NUM_THREADS creation option

I am using gdal to stitch together google earth engine tiles (35 tiles, roughly 100 gigs altogether). First I build a VRT import os from osgeo import gdal # Build a VRT os.system('gdalbuildvrt /...
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1answer
155 views

Subscript out of bounds error while mosaicking TIFFs together

I have just downloaded NDVI imagery from Google Earth Engine. The image was too big so it was divided into about 35 .tif files. Each tile has approximately 950 bands of NDVI values. I am now trying to ...
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GDAL tools creating artefacts [closed]

I am running the following line in a bash script: gdal_translate -of JP2KAK ${2}.vrt ${2}.jp2 to convert a virtual mosaic created with gdalbuildvrt to a JP2 file of the same name. The command produces ...
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How does Pix4D align overlaping images based on one GPS point

Images that can be imported into pix3d have only one GPS position labeled in center of the picuture. I am wondering how does this tool make mosaic (create one big picture with stiching together many ...
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27 views

Create a mosaic from every available cloud free image over the study area and batch export from GEE

I have a study area which encompasses several images. I would like to create a mosaic for the entire study area and export it as a single image for every possible date for which imagery is available. ...
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How to mosaic/align multispectral georeferenced images into one merged file with GDAL

I am trying to work my head around how to make mosaic from georeferenced multispectral images. Header of those images already contains information about GPS location. Separate image is saved as *.tif ...
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1answer
113 views

Creating condition for mosaicing images in Google Earth Engine JavaScript API

I am trying to create a mosaic of a several classified images using as criteria that every pixel has to be the same class at least for three images. A similar process can be done using the .min() or ....
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72 views

How to mosaic multiple raster datasets?

I have more than 50 raster files. I have used to mosaic to new raster tool on Arcgis and I wonder if there's anyway I can select all rasters instead of having to click one by one to add them up.
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49 views

Loop through directories and mosaic all raster TIFFs in each dir

I have 200+ directories, each directory contains x amount of TIFFs which I want to mosaic. I have a snip of code that will list the TIFF contents of all dirs under a parent directory, now I just need ...
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160 views

Generate Raster Mosaics in a folder using all TIFFs in the folder, then iterate in the next folder

I have 200+ directories, each directory contains x amount of TIFFs which I want to mosaic. I have a snip of code that will list the TIFF contents of all dirs under a parent directory, now I just need ...
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27 views

Mosaic images in double precision pixel type

I am trying to mosaic the raster images, but those images are in the double-precision pixel type and their pixel depth is 64 bit. How can I mosaic that raster image? I am using ArcMap 10.2 version. ...
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Merging multiple raster files incorrect value in ArcGIS

I have multiple rasters in .tif (geotiff) format and I´m trying to merge them into one using the Mosaic to New raster tool in ArcGIS(10.7.1). These rasters have a partial overlap between them and are ...
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1answer
57 views

Raster Mosaic changes values to 0 for some input rasters

For a while I was having an issue where the values for the first two inputs in the raster mosaic tool were not being carried over into the final product. This confused me for a couple hours and while ...
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SNAP Multi-size Mosaic problem

I am trying to mosaic 3 S2 L1C images. I used the multi-size mosaic to prevent resampling as preprocess for the mosaic-only. However the resulting image has 0 values. This is the result: Since S2 ...
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No Data when using Mosaic to New Raster

I am using the Mosaic to New Raster tool in ArcMap 10.7.1 to mosaic 4 rasters shown below. I downloaded all of them from the ArcticDEM dataset. They do not overlap and as far as I can tell they have ...
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1answer
49 views

Descartes Labs Platform speeding up scenes.mosaic

We're hoping to download many Sentinel-2 mosaics in order to deploy a deep learning model on a large region. We currently use the following steps to construct and download images: dltile = dl.scenes....
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Image Dodging (color matching algorithm) in ERDAS

I have two LISS 3 images acquired in Feb and March a year apart. I have performed atmospheric correction (haze reduction) for both the images individually before applying the color matching algorithm ...
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1answer
30 views

arcpy.MakeTableView returns empty result object on second iteration of loop

I've encountered a very strange problem involving a geoprocessing tool in ArcPy that I have spent too much time trying to solve on my own. Specifically, I have a process that iterates through a list ...
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1answer
42 views

Creating composite raster from rasters with different spatial extent without losing information using ArcGIS Pro

I am creating a composite raster using several individual rasters with different spatial extents (captured from different times), see image below. The idea here is that I want to create one mosaic ...
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1answer
55 views

How to define CRS (WGS84) of a mosaic raster file while all the parental raster files are in WGS84 in Python?

out_meta.update({"driver": "GTiff","height": mosaic.shape[1], "width": mosaic.shape[2], "transform": out_trans, ...
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1answer
286 views

reduceResolution failes in GEE

I have three images in GEE ,I would like to reproject two of them to have the dame reprojection as the third one. each of those 3 images is mosaic of all the avilable tiles from certain day. The ...
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74 views

OpenLayers/GeoServer Image mosaic

I would like to understand why I can't change the files of my mosaic directory in GeoServer. When I create my layers, I specify the URL of my directory with GeoTIFF files and shapefiles. If you change ...
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2answers
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Need to assemble a matrix from several ASCII GRD files

I am totally new to GIS software. I would like to consolidate 205 ASCII GRDs files (the file format of Golden Software's "Surfer") into a single big GRD file or just a big matrix of (about 2400 rows ...
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1answer
25 views

Saving outputs from arcpy.da.Walk to the same folder

I have a number of sub-directories within my "BP Tiles" directory. Each of these sub-directories represents a different year (2016, 2017, 2018, etc.) and within each of these sub-directories is a list ...
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Missing areas when using mosaic after projectRaster or vice versa

I have 290 MODIS NPP tif tiles that I want to merge and project into EPSG 4326. mosaic_raster() works just fine (Fig 1) but when I project the global raster (with or without a template) I lose almost ...
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1answer
139 views

Mosaic multiple multi-band rasters into a single multi-band raster using QGIS

I have >50 four band rasters that I would like to mosaic into a single four band raster. SAGA mosaic doesn't seem to work since it flattens the rasters out and combines them into a single band mosaic. ...
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1answer
64 views

Arcpy ArcMap mosaic use different raster whenever nodata value

I am using ArcPy in ArcMap and have multiple Rasters (Landsat imagery) taken from a given area (Image 1). My final goal is to create a cloud free image of the complete area. Since the Rasters ...
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47 views

Mosaic 70 rasters to a new raster

Hi I have 80 rasters that I want to combine with Mosaic to new raster. 1- is the order of adding inputs important ? Is there any quicker way to add all those rasters ?]1]1

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