All Questions
Tagged with erdas or erdas-imagine
283 questions
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ERDAS IMAGINE: Spatial Modeler Volume Change
Goal: sum of volume change of two DEM; time 1 - time 2
How to insert an AOI/query for certain area
How to get visual change of loss and gain?
- 11
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101
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Where can I download NDVI or landsat images of south china that isn't in an .img file format [closed]
Everything i seem to find is an hdf file and i can't open it in erdas. so is there a way to convert it to open in erdas or do i need to find somewhere else, earth explorer and glovis are the two ...
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83
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How to create a map showing NDVI result in erdas?
I'm using Spot 5 image to run an NDVI analysis. The band that I used in processing is 4,3,2. The area was 80% covered by mangrove.
My problem here how can I create a map to show or present the result?
...
- 9
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170
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Hard wood tree and Soft wood(shrubs) Vegetation Differentiaton
How I Differentiate Hard wood tree (like Mango, Sal) and Soft wood(shrubs like reed) Vegetation using Multispectral or Hyperspectral Image? I have TM, ETM, OLI, Hyperion, Aster Image and ERDAS 2011, ...
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278
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Calculating vegetation indices on pansharpened landsat 7 images [closed]
I have a problem with calculating vegetation indices like EVI, GSAVI, SAVI on Landsat 7 images after I done a Brovey Transform, Modified Resolution Merge and HCS transformation in Erdas 2013.
My ...
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441
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Erdas Imagine 2014 - Mosaicing SPOT 6 image tiles with seamless colour generation
I have several SPOT 6 image tiles and every time I mosaic the images the final image comes out with different colors, with each depicting the various tiles(image scenes) used in the mosaic. The ...
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667
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Layer Stacking landsat 5 surface reflectance high level data [closed]
I downloaded the surface reflectance landsat 5 scenes but when I layer stacked them my image was not how I imagined. I manually used atcor on normal scenes and it looks nothing like the scenes I layer ...
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70
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Filtering out wastelands,scrubs,swamps, grasslands etc from LULC for India using ERDAS IMAGINE Model maker?
I have a LULC for India. i need to filter out non-agricultural, non-builtup, non-waterbody, non-forest. simply wastelands,scrubs,swamps, grasslands etc.
Please how to filter these using ERDAS IMAGINE ...
- 11
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115
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Can I use a signature for more than one picture?
I want to use the signature from one picture and use it in other. Can I do this using ERDAS Imagine?
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81
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Conflict with ArcGIS for Desktop and Erdas Emagine on same PC? [duplicate]
I already installed ArcGIS 10.1 for Desktop.
The problem is when I install th Erdas Imagine 8.6 that specify above.
So, could you help me in order to run both software products in one PC.
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96
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What is the Pro or Cons for mosaic 30 GB jp2000?
Has anyone tried mosaic jp2000 imagery in ERDAS, ArcGIS , ENVI or any softwares that they have accomplished ?
I have three jp2000 files that is total about 28.1 GB that I want to mosaic with ?
- 4,139
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82
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/1.#IND error in ERDAS
I was applying the vegetation index
($n1_ttc0003r_16(2) - $n1_ttc0003r_16(4)) / ($n1_ttc0003r_16(2) + $n1_ttc0003r_16(4))
to a multispectral image, and the raster resulting on this operation had all ...
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534
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Retrieving Aerosol Optical Depth (AOT) from Landsat multispectral data
I need to retrieve Aerosol Optical Depth from Landsat multispectral datasets.
Has anyone successfully tried something like that before?
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114
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How to avoid background zero values in erdas imagine model maker? [duplicate]
Does anyone know how to avoid background black color/ zero value in background pixels in processed images using erdas imagine? Particularly in model maker. It's confusing in statistical calculation.
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397
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Rectification of a lot of images using ERDAS IMAGINE
I want to rectify many images of same area but different dates at a time in ERDAS Imagine
1 I did this using Batch processing but I have no out put. Second I did reproject many images using Batch ...
- 41
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58
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Imagine 2014 displaying images with large no-data values
I'm starting to use Imagine 2014 after a recent upgrade. The images I'm using have data values in the range of approximately -.02 to 350.0. The no-data values bordering the data has a value of 2 ...
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1k
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Calculating TOA reflectance from Radiance using Erdas Imagine for a Spot2 image
Using the SPOT equation ρ = π L/[E cos (θs) d-²] to calculate TOA reflectance from Radiance.
L was calculated using this equation [L = (X/A) + B]
d was calculated by converting date to julian day ...
- 129
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79
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Water grey levels - remote sensing [closed]
by viewing two bands in erdas imagine the grey levels of the water differ. on the one image as below the water is dark and the other image the water is light. why is that? what cause the difference?...
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1
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1k
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Creating batch file from ERDAS IMAGINE Spatial Modeler?
How to create batch file from the ERDAS IMAGINE Spatial Modeler?
I want to do the same process to different input images, something similar which we can do by batch processing of the existing ...
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887
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Conversion problem of projection of MODIS LAI from sinusoidal to geographic
I am trying to change MODIS data's (LAI) sinusoidal projection to geographic. Actually I did it. But when I reproject it by ERDAS, the output LAI raster moved about 10 km to west side of actual ...
- 315
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48
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Determine sun elevation without header file?
I have some AWiFS and LISS-III data that I'm trying to convert from at-sensor spectral radiance to top-of-atmosphere reflectance. The problem is, the data didn't come with any header file. All I ...
- 151
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374
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Uninstall ERDAS ECW/JP2 SDK Version 5.0 (Ubuntu)
I am using Ubuntu Linux as main OS when it comes to geoprocessing but I am not yet an expert using it. I recently needed QGIS to have ECW support, so I followed the instructions of Luke in the ...
- 457
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174
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Why does ERDAS not like my GDAL output?
I am creating a raster using GDAL and the IMAGINE file doesn't work in ERDAS because it doesn't recognize the projection.
Here is the code to generate a sample:
from osgeo import gdal
projectionWkt ...
- 873
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119
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Is there any accuracy difference between standard DTM editing tools like DT Master and automatic removal of artefacts using ERDAS?
I would like to know whether there is any accuracy difference while editing DTM points using standard photogrammetry software like Inpho DT Master and automatics removal of artefacts in ERDAS imagine.
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249
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How do you convert an Imagine raster attribute value into the raster value?
I have a raster derived from image segments with row id as the value. I have an attribute in the attribute table which should be the raster value, "Standard deviation layer 5" (see image). How do I ...
- 151
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1
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3k
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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
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1
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4k
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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 ...
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2
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5k
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Mysterious Problems with .IGE file [closed]
I'm trying to manipulate an .IGE file, which I understand is a raster data format developed by Erdas Imagine. The data I've downloaded is the National Land Cover Database (NLCD) 2006 Percent Developed ...
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1
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3k
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How to work on histograms in ERDAS Imagine?
Is there a possibility to work on histograms in ERDAS Imagine?
For example:
Compare histograms of different images or different extents
Shift them or find patterns
I thought there must be good ...
- 317
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2
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6k
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Convert ERDAS Imagine AOI to Shapefile
I was trying to convert a very simple Erdas Imagine AOI file (its a single polygon) into a shapefile and was mostly finding documentation on the inverse (SHP to AOI). I was trying to follow the steps ...
- 916
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2
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17k
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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 ...
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654
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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.
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1
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397
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Is TOA reflectance in floating point or DN? [closed]
After converting at radiance to TOA reflectance,is going to be in DN or floating point.
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1
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217
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How to choose pixel values according to each land cover class?
I would like to do following steps using two types of images (precpitation and Land cover image):
select pixel values of precipitation image within each land cover classes
calculate total amount of ...
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1
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1k
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Unsupported compression type in ERDAS imagine Software
Am trying to load a Landsat band but I keep getting the error of unsupported compression type, what might be the problem?
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1
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273
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Need pros and cons of performing a GeoTIFF from ERDAS img conversion
I have a 20GB ERDAS IMG file that I need to incorporate into my project.
It's data covers the entire USA, indicating the thickness of satellite sensed tree canopy.
What image format would provide me ...
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1
answer
2k
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ECW not reocgnized as supported file format in GDAL operation
I've installed QGIS 3.6 for MAC, with GDAL 2.4, ECW GDAL Plugin for GDAL 2.4, and manually installed the libraries from ERDAS ECWJP2SDK 5.4.
This allows me to insert ECW files as raster layers in ...
- 401
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1
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225
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Where can I find the viewing properties on ERDAS?
The instructions state to click on vector and then viewing properties yet I cannot find the viewing properties.
When I click on vector in the main menu there is no option for viewing properties.
- 59
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2
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946
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Analysing Landsat images using ERDAS IMAGINE and ArcGIS
I am trying to use the Theil-Sen analysis on the Landsat images to compute vegetation indices, help me figure out how to come up with the median from the Theil-Sen equation in ArcGIS, ERDAS IMAGINE or ...
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1
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2k
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Change raster value manually
I am working with elevation data layer. I need to change a few of the pixel values of a raster layer manually. I use ArcGIS, ERDAS, QGIS. Few of the pixel values were deviated widely than its ...
- 601
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2
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122
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Data type doesn't match error in Sieve filter
I classified some land cover types in aerial image with Erdas Imagine, now I want to remove classification errors showing very small areas. I tried to use Sieve filter, but getting error notification "...
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1
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235
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Obtaining NDVI data from red-edge imagery?
I am working with an aerial image containing three spectral bands (blue, green, and red-edge). I can obtain an NDVI image with the imagery using Erdas Imagine, but I do not know which bands Imagine is ...
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1
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1k
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How to remove shadows from high resolution imagery (IKONOS 1M)
I have dataset imagery comes from IKONOS satellite, the dataset contains "imagery with 1m resolution - metadata - rpc file", the metadata file contains the information about "Sun Angle Azimuth - Sun ...
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1
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596
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Segmentation and Classification in ERDAS
I have segmented an image inn erdas and will want to use it in a classification exercise, how do i proceed?
My image is a low resolution 30m alos.
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1
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1k
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How can I split one band from 3 stacked layer image by ERDAS IMAGINE?
I have a 3 layers stacked image, each layer represents a band ratio for lithology extractions for geological purposes. I need to separate each layer separately
how can I do this by using erdas ...
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1
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3k
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What is a DTM in Grid format?
A client asked us for a group of files of DTM in Grid Format.
And my question is, what is this DTM in Grid format? O maybe its same of DEM?
Is it possible to convert from DEM gray scale format to DTM ...
- 119
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3
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630
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Automated Forest Change Detection
Using two different time of images in the same places. Can i develop an automated change detection for forest area?
What / which are the suitable software to used?
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1
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437
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Extract feature for automation method using ERDAS Imagine 2013 software?
I have Quickbird Satellite data, hence I want to extraction from Building foot prints using automation method.
Could you give whether its possible or not using ERDAS Imagine 2013?
- 843
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1
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265
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how to multiply and group values of NDVI in Erdas
I have downloaded the MODIS data for calculating the NDVi but the ranges of values in its attribute table ranges from -32768 to 9830 i want to club the similar values upto 2 decimal places and also ...
- 49
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1
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106
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Is there any method to choose the value of each pixel according to land cover
I have 2 images; one is land cover image (imgA) and monthly mean temperature image (imgB). I'd like to choose value of each pixel from imgB corresponding to imgA.
WhaT I expected is each pixel of ...
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