All Questions
Tagged with erdas-imagine erdas-imagine or
28 questions
2
votes
2
answers
3k
views
Using sieve filter in ERDAS Imagine and/or ArcGIS for Desktop?
Where can i use a sieve filter for my supervised classification?
Can i do it in Erdas Imagine or in ArcGIS?
I can't find it anywhere.
- 21
8
votes
3
answers
18k
views
Load a raster file directly in Leaflet
Is it possible to load a raster file (e.g. GeoTIFF or Erdas img) directly into a Leaflet map? If so, can you guide me to the correct documentation or method to do this?
I am trying to do this with the ...
- 529
5
votes
1
answer
5k
views
Open Source Alternatives to ERDAS IMAGINE ATCOR?
I have been using ERDAS IMAGINE's ATCOR extension for ATmospheric CORrection of ASTER imagery.
What opensource options exist for atmospheric correction of ASTER Level 1B products?
I'm primarily ...
- 51.8k
7
votes
2
answers
3k
views
Creating shapefile of satellite image footprints?
I'm looking for a tool or a workflow to compute satellite image footprints, for a large number of images across directories, and produce a shapefile. Ideal work flow would be:
fire up tool
point to a ...
- 1,543
7
votes
3
answers
4k
views
Calculating area of vegetation in raster file?
How do I calculate area of several vegetation types in a raster (.img file type) image. They are color coded. Am using QGIS (1.8.0) and ERDAS 9.2.
- 79
5
votes
2
answers
12k
views
Replacing Raster Values in Ras1 with Ras2
I have two rasters Ras1 and Ras2.
I want to change the Ras1.
In Ras1, there are few areas, lines, points I am interested having nodata cells and wrong data cells.(limited to interested areas only ...
- 812
3
votes
1
answer
2k
views
MOD 35 Cloud Mask HDF in ENVI
I am having difficulty getting ERDAS or ENVI to correctly read and display cloud mask attributes from MOD 35 HDF files. They files are displayed as 0-255, whereas I expected some kind of code 0, 1, ...
- 91
2
votes
2
answers
2k
views
NoData Value = 0, problem when creating NDVI, Erdas
I try to create an NDVI from Landsat and ASTER satellite images using Erdas Imagine. In Erdas, the satellite images have a nodata value of 0.
After creating an NDVI, the nodata value is still 0, but ...
1
vote
1
answer
974
views
Black edge (NoData pixels) in Landsat 8 color correction in ERDAS
My boss asked me to mosaic and color-balance multiple Landsat 8 tiles for presentation. I tried to do that in ERDAS but it returned weird result as below:
Obviously it's the black edges or nodata ...
- 333
0
votes
1
answer
3k
views
Imagine files between ERDAS and ENVI
I have ENVI 5.0 , ERDAS 2013 SP2, and ArcGIS 10.1 SP1. Every time I save an Imagine file from ENVI 5.0 and open in ERDAS 2013 and it seems like ERDAS does not like it and it would not open and would ...
- 4,139
0
votes
1
answer
654
views
Converting tif to format for TIMESAT using BEAM VISAT or ERDAS IMAGINE?
How can I convert tif image into a format for TIMESAT software to create a time series?
I am using BEAM VISAT or ERDAS IMAGINE program.
- 1
10
votes
3
answers
6k
views
Remove clumps of pixels in R
I would like to remove isolated pixels (or clumps of pixels <9) from my raster image.
library(raster)
# create some raster data
r <- raster(ncols=12, nrows=12)
set.seed(0)
r[] <- round(runif(...
- 3,386
10
votes
5
answers
12k
views
How to workaround large mosaic process which is failing?
I need to mosaic about 550Gb of tif imagery together and the software I have tried keeps failing. The area has been split into zones so that the smallest has approx 200 tiles.
I have used the latest ...
- 8,298
7
votes
5
answers
3k
views
Georeferencing aerial photos when only centroid is known using ArcGIS for Desktop or ERDAS Imagine?
I have heaps of aerial photos that need to be georeferenced.
I have access to ArcMap and ERDAS.
All I am given is an excel sheet with the centroid coordinates of each image.
Each photo covers ...
- 133
5
votes
4
answers
11k
views
Determining which "color" each image band represents?
I have a satellite image that has a few bands in it. But I don't know what colors they are supposed to represent, nor do I know where to look for this information--the file's metadata say nothing ...
- 83
4
votes
1
answer
3k
views
1m cell size equivalent value in decimal degree
I'm doing re-sampling pixel size in ERDAS 2014,I'm using input image(Indian terrain) in GCS_WGS_84 projection.
Now I have to keep out put cell size as 1m,what is the 1m equvivalent value in Decimal ...
- 1,419
4
votes
3
answers
3k
views
Matching colours in already mosaiced single image? [closed]
I have an already mosaiced image for a large area. I need to match colours in this single image. I do not have each image separately. I just have this large single image downloaded from GLS. How can I ...
- 91
3
votes
5
answers
5k
views
Batch process to get single band image from stacked image using ArcGIS, ERDAS or ENVI?
Can you help me to extract a single band image from stacked multiband image. Totally, 260 image has been stacked. When I do to this, it will take a long time. So I'd like to know there is any batch ...
- 169
3
votes
3
answers
3k
views
NDVI image value changes from -1 to 1 in ENVI to 0-255 in ArcGIS Desktop and ERDAS Imagine?
When i open NDVI image in ENVI, its value is still within the range (-1 to 1).
But when I open this NDVI image in ERDAS and ArcGIS Desktop, its value is 0-255.
What does it mean?
Is the NDVI ...
- 31
2
votes
1
answer
2k
views
How to remove band from stack in ERDAS 2013?
I have a Landsat 8 scene where I have stacked 11 bands. I need to remove one band from the stacked layer. Is there a toolbox in ERDAS 2013 that allows me to take out a band?
I am aware that ENVI 5....
- 4,139
2
votes
5
answers
8k
views
Creating a Time series NDVI map [closed]
I would like to create a NDVI Time Series map? How do I do that? The one I probably would like to have similar like this http://proceedings.esri.com/library/userconf/proc02/pap0593/p05931.jpg
I ...
- 4,139
2
votes
3
answers
1k
views
Where to obtain free 15m ASTER image for New Mexico?
I am looking for a free Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) image that will let me to perform NDVI for the pilot crop health/soil moisture that can go as far back ...
- 4,139
2
votes
2
answers
5k
views
Floating point to 8-bit unsigned raster conversion using ArcGIS for Desktop or ERDAS IMAGINE?
I have an image with value ranging from -1 to +1.
I want to convert this into 0-255 (8bit).
How can this be done using ArcGIS for Desktop or ERDAS IMAGINE?
- 61
1
vote
1
answer
349
views
How can I choose values from stacked raster images according to location of ROI
Before I choosed ROI on land surface temperature (LST) images and obtained pixel values of LST. Now I need pixel value of another images which are stacked multi-band image. My main purpose is to ...
- 659
0
votes
2
answers
17k
views
Layer stacking Sentinel 2 imagery
Is it possible to layer stack all 13 Sentinel 2 bands or can I only layer stack those that are the same resolution (so for example the blue, green red and NIR bands). I have a very large area of ...
- 861
0
votes
1
answer
4k
views
Running ERDAS Imagine and ArcMap on same machine [closed]
ArcMap 10 and ERDAS 8.7 were already installed in my computer. But I want to open both programs at the same time. If ArcMap can open properly, ERDAS cann't open and vice versa, showed that following ...
- 659
0
votes
2
answers
424
views
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 ...
- 5
-1
votes
1
answer
6k
views
How do I subset image by vector layer using Erdas Imagine?
I have downloaded MODIS MOD10A2 8 day snow cover image. I need to subset this image. I tried to subset the image in erdas.
it says the AOI layer is empty.
