ERDAS IMAGINE is a remote sensing application with raster graphics editor abilities designed by ERDAS for geospatial applications.

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26 views

Is the radiance and reflectance required for landsat 7 and landsat 8 for urban detection

I am working on urban detection in a an area where roads are made by cutting the forest. I want to ask that it is necessary both radiance and reflectance? I am narrowing my question as: I want to do ...
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8 views

IHS to RGB image transformation with shifted histogram in Erdas Imagine

I am trying to remove a shadow in an aerial image in Erdas Imagine by shifting the intensity histogram having transformed the image from RGB to IHS colour space. However, when I have completed the ...
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21 views

Crop/ forest/grass classification in Erdas

I am trying to calculate crop land, forest and grass land to check the irrigation potential during the period from Landsat 8 image using supervised classification in ERDAS. I am finding difficult to ...
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48 views

How to increase Compression Memory for ECW Opacity Builder

I am attempting to build opacity within an ECW file using ECW_Opacity_Builder.exe from APOLLO Essential Utilities 2014, which has worked flawlessly many times before. When attempting to build opacity ...
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1answer
19 views

How to apply Melt Area Detection Index to MODIS imagery?

I am working with some MODIS imagery for a project (I'm relatively new to remote sensing) using MOD09GA, and hoping to apply a melt area detection index (MADI) to images to calculate melt day length ...
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21 views

Doing supervised classification for images on ERDAS?

i want to do a supervised classification for images on ERDAS, using GIS, i clipped the areas i want to use as training/signature from the original images. but i just can't create a signature file, ...
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17 views

Why Pixel value is zero in Image metada? Do Pixel value and file pixel value represent different or same meaning?

I have opened a Raster Raw image in Erdas Imagine and stacked four bands and I opened the stacked image in software. After I opened the metadata from home menu. I clicked on Pixel and saw that all ...
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27 views

Accuracy assessment in Erdas imagine

Is it necessary to do an accuracy assessment for an unsupervised classification done for a Landsat 5 image?
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43 views

Calculating Excess Green / Excess Red vegetation indices using Adobe CS6

I am undertaking an agricultural mapping project in which I'm imaging a field using a UAV equipped with a 16.1MP RGB digital camera. I am attempting to process the images to yield vegetation indices ...
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1answer
32 views

How to perform radiometric correction and enhancement processing to get the coastal habitats?

I have a satellite image that is processed to unsupervised classification. I have to get the coastal habitats from this image. The satellite image before classification process need radiometric ...
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0answers
20 views

Erdas mosaic producing lots of black space?

I am trying to create an imagery mosaic using erdas imagine. The original files were in a 16 bit DIM Pan-Sharpened format, which produced a completely unusable blank raster (likely an issue with color ...
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1answer
27 views

what is the basic programming language or code language for raster swipe tool? [closed]

How to develop a Swipe tool for rasters or vectors (Spatial layer) like openlayers or ErdasImagine. Can any one give me the references please
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65 views

Layer stacking many images using Python and Erdas Imagine Spatial Modeler

I have downloaded huge amounts of Sentinel 2 data to cover a large area of the Himalayas and need to layer stack each tile. I have decided to use Python to do this using the LayerStack tool from Erdas ...
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1answer
164 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 ...
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3answers
99 views

What preprocessing is required when using Landsat for LULC?

Can anyone help me regarding the what kind of image pre-processing techniques should be used for the landsat images downloaded from http://earthexplorer.usgs.gov/ to create land-use land-cover (LULC) ...
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25 views

Spectral classification for crops

I'd like to do a classification using a multispectral raster (1 Blue 475, 2 Green 560, 3 Red 668, 4 Red Edge 717, 5 Near IR 840). I'd like to classify the crops (kiwi plants). I tried a few ...
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2answers
27 views

Activating swipe tool in ERDAS imagine?

I am having a problem trying to enable (activate) the swipe tool in ERDAS imagine. I used to use it but due to some reason the tool is deactivated. Is there a way?
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57 views

Interpretation of land use/ land cover change matrix in ERDAS Imagine

My question is related to landuse land cover change detection using ERDAS Imagine. First, I have classified all the satellite imageries using supervised classification in ERDAS Imagine. Now I want to ...
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11 views

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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42 views

How do I make a ratio image on Erdas Imagine 2014?

I have a stacked image but want to divide bands 4/5/. I have built a model on the model maker but the resulting image is completely black after running the model. When I open the attributes table the ...
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2answers
114 views

How to spatial subset (clip) TerraSAR-X SSC data (.cos) using vector files and one of the softwares (ENVI, PCI Geomatica, Erdas Imagine, etc)?

I have SSC data of San Francisco which I have extracted their extent as a KML file using: SARscape > Import Data > SAR Spaceborne > TerraSAR-X Then through some operations in ArcGIS, I have ...
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0answers
22 views

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?
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1answer
39 views

Displaying Raster Source Information

I have a large number of raster files I'm working on. I need to figure out how each of the files was processed from. I have a composite land cover map and would like to view the file names and ...
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1answer
202 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.
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78 views

How to remove black pixels in Landsat image

Does anyone know how I can remove these black pixels around the edge of this Landsat image? They appeared when I layer-stacked the bands in ERDAS IMAGINE - they were not there in the separate band ...
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97 views

Using original Landsat multispectral image or pan-sharpened image in land cover classification?

I am currently creating land cover maps of a number of national parks across Asia from Landsat 8 imagery and also later from SPOT imagery. I plan to use supervised classifications in ERDAS IMAGINE and ...
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67 views

How Does Erdas calculates the ground coordinates for each pixel in the image

How Does Erdas calculates the ground coordinates for each pixel in the image I have a conceptual question regarding photogrammetry, what is the formula used by Erdas to find the (X,Y,Z) on ground. ...
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93 views

Automatic tie point measurement generate wrong placed tie points

I couldn’t figure out why the Erdas 2015 generates a wrong placed tie points when I use Automatic tie point generation measurement, have a look at the below example.
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28 views

Erdas LPS : how to rename points_ID values?

I'm working with ERDAS LPS 2014, i would like edit the name given for my GCPs and TPs (add the following suffix : "_w"). I tried to do that thanks to the "formula" menu... in vain. I did not find a ...
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44 views

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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53 views

Adding Masked Classes to unsupervised classification in ERDAS Imagine

Prior to supervised classification of a landsat 8 scene in ERDAS Imagine I masked two classes using the 'Mask' tool [Raster - Geometry - Subset & Chip - Mask] I now wish to add these two classes ...
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5 views

The effect of setting the reference system as “Unknown” when building stereo block

I couldn't figure out what is the effect of setting the reference system as “Unknown” when building stereo block in Erdas.
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1answer
142 views

Existence of fiducials marks in a digital camera file

Existence of fiducials marks in a digital camera file I have created a generic digital camera file using Erdas 2015 with the following data in it: LPS Camera File Version: 2.0 Camera Name: "generic ...
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1answer
33 views

How to load Erdas .img files into Whitebox?

Just installed Whitebox 3.2.3 and I'd like to import a 14 MB.img file. The data import options do not list .img as a file source. A web search has also turned up nothing.
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25 views

Error : LayerRasterRead failed : Imagine Photogrammetry

I'm using Imagine Photogrammetry ( ERDAS ) and I would like to generate a Data Elevation Model DEM based on PLEIADES imagery. When I execute erdas , it seems like he is computing the DEM but after ...
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94 views

Calculation of Land Surface Temparature Using Landsat-8 Band 10&11

I had calculated land surface temperature (LST) from landsat-8 TIR data and found that the maximum temperature found in the current fallow land instead of built-up land. However, previous research has ...
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1answer
224 views

Installing Google Earth ribbon tab in Erdas?

I have Erdas Imagine 11 and Google Earth installed, however the Erdas interface does not show the Google Earth ribbon tab. I've tried re-installing both software packages, but the toolbox does not ...
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142 views

Evapotranspiration in SEBAL and ERDAS IMAGINE?

I am estimating ET from Landsat 7 imagery. I followed the SEBAL manual by Prof Allen and it has really been helpful. I have run through the model in Erdas Imagine and the metric spreadsheet and have ...
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51 views

Finding spectral reflectance bands for classes created from unsupervised classification

I am working on a project that requires separating water and non-water features based on unsupervised classification in ERDAS Imagine 2015. I have taken the original image, and assigned it into 50 ...
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1answer
42 views

obtain 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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1answer
143 views

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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35 views

Downloading data for surface temperature mapping

I'm doing a school gis project on analyzing the urban heat island effect on Denver, Colorado mapping surface temperatures. I tried downloading data from the Earth Viewer application but upon loading ...
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0answers
58 views

applying Image regression in landsat image

I have two different date of Landsat image.I want to do change detection using image regression method.Is it possible to do image regression in Erdas Imagine or ARCGIS? How can I develop a model for ...
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85 views

How to orthorectify an image from a hilly region without sensor parameters but with DEM and some GCPs in ERDAS or ArcGIS?

I have a raw raster image from a sensor, but do not have the possibility to obtain the sensor parameters. However, I do have a (older) reference ortho image and a DEM with good accuracy. Both are ...
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1answer
148 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 ...
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1answer
92 views

ORFEO vs ERDAS: How to extract a good DSM with ORFEO

I'm trying to use ORFEO to check is it suitable to replace ERDAS to perform DSM extraction from stereo pairs. First thing, I can't use ORFEO for complete Pleiades images, it always crashes (my machine ...
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2answers
163 views

Unstack band layers from raster

I have stacked layer (from ERDAS) of Landsat 1-5 and 7, bands. I want each of the bands in a separate layer. How can I do that?
2
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1answer
314 views

supervised classification

I am having a problem in creating new signatures in Signature Editor in ERDAS 2014. Whenever I click on the icon (i.e., after selecting the aoi), it shows an error which says "unable to open ...
2
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1answer
197 views

Is possible to merge landsat 8 with High Resolution Satellite Imagery?

i have landsat8 and High Resolution Imagery (1m) in the same study area, is possible to merge them to get one imagery so that i can take advantage of the accuracy satellite imagery.
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66 views

Pan sharpening of World View 2 image

I want to pan sharp world view 2 multispectral data its panchromatic band using HCS resolution merge tool in erdas imagine, can any one guide about which resampling technique(Nearest neighbour, ...