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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12 views

Calculate statistics of raster based on plygon borders in google earth engine

I have a script in GEE that takes shepfile (sometimes with two polygons), classify it to 3 different classes and create one new layer with those 3 classes. I want to calculte statistic for each ...
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15 views

Give a specific value to mask layer

I have code that creates 3 different layers using masking, each time other different pixels get mask and the others get 1 so the final result is 3 layers that are complemntary: My problem is that ...
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35 views

Build Mosaic using gdal based on Modal value

I have an immense (~50,000) set of tiles that I want to mosaic using the mode for every pixel. The tiles have a size of 299x299 and are overlapping each other by 2/3 respectively. For the sake of ...
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14 views

Convert list of .hdf-files to .vrt in python with Gdal

I'm a little lost. I have a directory with some Landsat-8-scenes. There are files that end on .hdf and they are always accompanied by a .hdr file. What I wanted to do is to convert these scenes to a ...
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GEE - Get date of ImageCollection mosaic

I have created mosaics by date from an ImageCollection and now want to label each mosaic with its corresponding date. This is my function to label the ImageCollection: var date_label_pos = ee....
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40 views

range map: Layer error: Number.divide: Parameter 'left' is required. error when print the dictionary

I have code that calculates NDVI, then calculate statistics inside a dictionary and then based on statistics calculte 3 layers that later on mosaiced. The problem is that for some reason I get this ...
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17 views

Using Copy Raster tool to BQA band only

I want to do vegetation, water, and soil analysis to an area using satellite imagery. My area of interest is East Java, Indonesia. Here's the map of East Java, Indonesia. I got 6 scenes of LANDSAT 8 ...
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30 views

How can I fill empty raster cells with values from another raster in QGIS?

I have 2 rasters: 1 that has many gaps in between pixels: And one that is more filled: I want to fill the empty cells from raster 1 with the cells from raster 2. Cells that are filled in raster 1 ...
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Mosaicking many rasters with large empty raster in R

Following my previous question (Subtracting rasters with different dimension, origin and extent in R), I am trying to mosaic many small glacier rasters into one large empty raster which I can then ...
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30 views

rasterio merge giving incorrect result

I have 4 separate ASCII grids which all contain the same data: 1 2 3 4 3 4 5 6 4 5 6 8 7 9 5 4 The metadata, however, is different: ncols 4 nrows 4 xllcorner x yllcorner y cellsize 1 nodata_value -...
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19 views

Mosaic to New Raster with no output

I have a large set of 4-band high resolution NAIP imagery that I had put into a mosaic and am now trying to create a raster using the Mosaic to New Raster tool. When run the tool just says 'mosaic is ...
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51 views

Cannot open TIFF in QGIS after mergin with gdal_translate [closed]

I have merged several TIFF files into a bigger one. When trying to add this image to QGIS I get the following error: Cannot open TIFF file due to missing codec. Raster layer Provider ...
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30 views

Google Earth Engine Error when applying PCA on an aggregated image

I am getting this Error when applying PCA on an aggregated image using .median() method: Image.reduceRegion: Provide 'geometry' parameter when aggregating over an unbounded image. I have applied the ...
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49 views

Google Earth Engine Error: When computing PCA of Sentinel -2 Mosaiced Image

I want to select an area using Rectangle or Polygon tool, mosaic Sentinel- 2 images in the selected area using the median() or mosaic() method and calculate PCA of the area. When I use a single image ...
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1answer
29 views

Arcpy Mosaicing Rasters - Output seems to be wrong

I am using the Arcpy-package for Python 2.7 (with Arcgis 10.1). I tried to write a script that is mosaicing all rasters in my directory, where they overlap it should calculate the mean for the rasters....
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17 views

How to mosaic and clip multiple sentinel 2 bands together using shape file as masked layer in QGIS 3

I am using sentinel 2 for LULC mapping. My study area contains three sentinel 2 tiles: T46RDN, T46REN and T46QDM. Using my study area shape file as masked layer, I want to mosaic and clip these bands. ...
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11 views

Warping large virtual mosaic into a small raster results in IntegerOverflow error

I'm coming across an interesting situation using gdalwarp. I have a very large virtual mosaic with varying resolutions of source files. I use this virtual mosaic to create smaller rasters using ...
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145 views

gdalwarp resampling method

I'm trying to mosaic some georeferenced images using gdalwarp. But if I change the resampling method the result is always the same, why? I need to build a mosaic where the value of each pixel is the ...
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37 views

Python script tool with multivalue raster input not honouring raster path?

I am creating a custom Python script in ArcGIS that takes a rasters as a multivalue input and have run into a problem which I don't think is a duplicate (having scoured SE for many hours) My problem ...
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37 views

underwater mosaic with overlapping photos

What is the best approach to creating a mosaic with underwater photos. The photos are black and white. They suffer from non-uniform illumination, i.e. the middle of the photo is bright and the edges ...
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1answer
59 views

Mosaicing non-overlapping rasters in QGIS

I have a set of georeferenced rasters that I want to combine in a seamless layer in QGIS. I believe what I have to do is clip them by mask layer and then build a virtual raster. There is an issue ...
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29 views

Choosing which of Source, Derived and Referenced Mosaic Dataset to use?

I am using ArcGIS Pro and I am trying to find out the difference between source mosaic dataset, derived mosaic dataset and referenced mosaic dataset in order to decide when to use which one.
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138 views

What is the purpose of these SAGA raster mosaic parameters?

BACKGROUND: Using QGIS 3.8.0 Processing > Toolbox > SAGA > Raster tools > Mosaic raster layers, I do not understand the purpose of the Match and Fit parameters. Here's a screenshot of the Match ...
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41 views

Is there a way to connect 2 tiles of downloaded landsat data in ArcMap?

I have downloaded two Landsat 5 images because my study area is divided between the 2 tiles. I have created a composite of all the bands and then tried the mosaic tool in ArcMap but the result I have ...
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44 views

Finding overlap and sum of rasters using ArcGIS ModelBuilder?

I have about 300 rasters that I need to find the overlap and sum of to find 'hotspots'. I set each raster value to 1 and used the Mosaic to New Raster tool to create a new raster. I tested this with ...
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21 views

Mosaic rasters and clip

I have a number of satellite image rasters covering my study area. I want to mosaic and clip the output raster to my study area. Note that the images overlap each other and do not join end to end. How ...
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1answer
21 views

ERDAS mosaicPro from 2D view reference layer is not displayed on top

I am having an issue using the ERDAS mosaicPro from 2D view tool. I am using ERDAS 2015. I have two separate Landsat 8 file bands. Band 1 from one date and Band 1 from another date. I have ran the ...
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42 views

Mosaicing of multitemporal Sentinel-2 images

My aim is to combine several Sentinel-2 Level2A images of the same location/orbit number but at different dates of a year. I would like to have different options to create that mosaicing (e.g., if ...
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116 views

How to load, in QGIS, raster datasets originally mosaicked in ArcGIS?

I have used ArcGIS for years in an academic context but have very recently started using QGIS in earnest as my ArcGIS license is expired and I want to experience a new set of soul rending frustrations....
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193 views

Getting “ERROR 000999: Failed to get raster”?

I'm trying create a raster with arcpy.MosaicToNewRaster_management and this message appears in the end of the process: Runtime error Traceback (most recent call last): File "", line 1, in ...
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1answer
61 views

Replacing masked cloud areas with another satellite image?

I have various Landsat images of which many are cloudy. Using the cloud masking plugin available in QGIS, I was able to identify and remove the areas with cloud and cloud shadows from every image. ...
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164 views

Very large GeoTIFF dataset to GeoPackage

I'm trying to mosaic a large GeoTIFF dataset into a GeoPackage with Gdalwarp (no reprojection). There are 512 .tif files, each with a single 8-bit grayscale band, and 1 meter resolution. I'm using -...
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79 views

Creating Workspace for Satellite Imagery in ArcGIS Pro?

I am trying create mosaic from Sentinel – 2 satellite data. To realize this task I’ve used “New Ortho Mapping Workspace” and “Satellite” Type. In next step I’ve chosen appropriate sensor type, the ...
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70 views

read error after mosaic_rasters in R

I am using mosaic_rasters from gdalUtils to combine different raster files. More specifically, I am using the 12 tiles that cover Southern Africa from the well-known Hansen et al. (2013) forest map (1....
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1answer
41 views

Every geoprocess with merged raster produces 999999 (ArcMap 10.6)

I have a county where there is some LiDAR (1 meter) coverage. For the rest of the county I downloaded 10 meter DEM from USGS. Both rasters are in same projection and units. I resampled the 10 meter to ...
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50 views

Landsat 8 Mosaic (NDVI) Overlapping?

I have downloaded 3 satellite images (Landsat 8 OLI TC1P), in three different periods (two images are from Mart 4. 2017. and the one is from Mart 20. 2017). I have joined (made mosaic) them in ENVI ...
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46 views

Clipping Raster Mosiac Simultaneously Within Separate ArcPy Scripts?

I have a large raster mosaic dataset that I would like to clip within several scripts simultaneously, but whenever I run two instances of a script simultaneously one always fails with the error: ...
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78 views

How to fix error 000840 the value is not a raster dataset for Mosaic?

I'm trying to to complete a batch mosaic operation in ArcMap 10.4.1 Python window. I need to run the Mosaic tool about 80 times for sets of three rasters. Basically I want the second raster to mosaic ...
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48 views

Performing iterative Mosaic in ArcPy?

I'm attempting to complete a batch mosaic operation in ArcMap 10.4.1 Python window. I need to run the Mosaic tool about 80 times for sets of three rasters. Basically I want the second and third raster ...
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19 views

How do I control the display of certain rasters in a mosaic dataset?

I have three mosaic datasets that I want to combine into one master mosaic dataset: I want to display the city imagery on top, the regional imagery next, and the county imagery on the bottom. They ...
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56 views

Raster Resolution - Will not display past certain scale

I just created a mosaic of a couple hundred digital elevation models in ArcGIS desktop. The mosaic only appears at the raster resolution. I am working with a very large area and need the scale of my ...
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1answer
160 views

How to sample points from temporal layerstacking image including null or masked value in Google Earth Engine?

I'd like to sample points from temporal Sentinel-2 images covering a state, about 13 month's mosaic image were stacked into a new image. When I sampled points on the image, I got nothing. I think ...
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195 views

How can I sample points from images mosaic in Google Earth Engine

Rodrigo E. Principe did a great job for Mosaicking a Image Collection by Date (day) in Google Earth Engine (https://code.earthengine.google.com/20ad3c83a17ca27b28640fb922819208) based the code, I ...
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39 views

Merging layers with preferences or ranks using ArcGIS Desktop?

I want to make a "Mosaic" or a "Compilation" of 20 shp. layers which some of them are overlap. The layers has a field named "Year" and I want the newest be on top and delete the overlap older shps ...
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209 views

GeoServer ImageMosaic coming out blank with overlapping images [solved]

I'm trying to combine multiple "strips" of imagery into a single mosaic. Each of these strips is composed of many .tif files, and I have a directory with multiple subdirectories, each which contains ...
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3answers
85 views

Mosaic UAV image step by step using ArcMap?

I have 20 pieces of UAV image, and using ArcMap i want to mosaic it all to become one raster but step by step, what i mean is mosaic image 1 & 2, image 3 & 4 ...... then result of 1&2 ...
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103 views

Why isn't merge in QGIS working for me?

I am attempting to merge 153 geotifs into one large geotif of the Portland area. This is what my rasters looked like before the merge: Here is a zoomed in image: This is what the raster looks like ...
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1answer
49 views

Stripes between 2 images of Sentinel 2A (Level-1C)

Why do i get these stripes between 2 images of Sentinel 2A? (Figure) I notice that this happened for 2 images of different sensing date (even they're just 3 days away). Has anyone had this ...
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1answer
85 views

Mosaic Landsat Scenes for NDVI Generation

I would Like to generate an NDVI map for my study region, which is positioned between three Landsat scenes. Which method suits: 1) compute NDVI for each Landsat scenes and then mosaic or 2) Mosaic ...
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1answer
101 views

Smooth mosaicking of smaller orthomosaics to form a homogenous mosaic

This image below is generated using Erdas Imagine where I used mosaicpro tool to create a super mosaic of orthomosaics generated using PIX4d I used following options: Color Balancing Color Dodging ...