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

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11 views

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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1answer
16 views

create a vegetation mask using Landsat 7 [on hold]

I'm working on a very large study area. The aim is to create a vegetation mask representing only pines. I'm using Landsat 7 images. Since the recordings were made in the winter it's pretty easy to ...
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20 views

How to create NDPI/ NDWI or NDTI in erdas imagine 9.2? [closed]

I have Liss IV images but I dont know how to create the Normalized difference pond index (NDPI), Normalized difference water index (NDWI) or Normalized difference Turbidity index (NDTI) in Erdas 9.2 ...
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1answer
31 views

How to rescale data ranges in ERDAS?

I have an Normalized Difference Vegetation Index(NDVI) and Enhanced vegetation index (EVI) layer and I want to re-scale their data ranges to value ranges from 0–to–1, in order to optimally stretch the ...
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0answers
10 views

Problems using ATCOR for Erdas Imagine '13

An output from ATCOR processing (besides an atmospheric correction and dehazing) is expected to be an image containing true reflectance values (instead of raw input DNs). As far as I know such data ...
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33 views

RECLASSIFYING NDVI [closed]

I AM DOING A FOREST ANALYSIS USING THE NORMALISED DIFFERENCE VEGETATION INDEX (INDEX), AND AFTER THAT I TRIED TO CLASSFIFY THE NDVI RANGES INTO THREE CLASSES USING A CONDITION STATEMENT BUT I COULDNT. ...
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33 views

Batch Convert shape files into aoi's in erdas

How to Convert Shape files in batch mode to aoi's in erdas through python script?
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1answer
29 views

Erdas python scripting help

I want to write scripts for Erdas in Python. I downloaded some Python examples here but I could not make much. Where can I get the full Help material for Erdas python scripting?
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15 views

MODIS MOD13Q1 extract ndvi value [duplicate]

i have downloaded the MODIS MOD13Q1 from USGS GLOVIS in .hdf format. how i will convert it into original ndvi value by multiplying scale factor of 0.0001. I am using ERDAS IMAGINE 9.1 & ENVI 4.7. ...
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1answer
47 views

MODIS MOD13Q1 ndvi calculation

i have downloaded the modis MOD13Q1 from usgs glovis in hdf format. how i will convert it into original ndvi value by multiplying scale factor of 0.0001. I am using ERDAS 9.1 & evni 4.7. Can you ...
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13 views

How to repeatedly mosaic raster in Erdas?

I have found script to mosaic raster in R. But the output raster size is almost 9 times bigger (92mb) than mosaic it in Erdas (12mb). So I prefer mosaic raster in Erdas. But it wastes so much time to ...
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32 views

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 shape ...
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1answer
34 views

How to remove sandy dots in an image?

I am processing a LandSAT image for geological purposes. After some processing there are so many sandy dots in the image. To get clear geological formation as a polygon I want to remove small sandy ...
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0answers
25 views

unwanted pixel removal in the image [duplicate]

I am processing an image in Erdas Imagine, there are some small unwanted pixels that I want to remove automatically. Is there any way to do so?
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0answers
19 views

Vectorized a historical soil map advice

I received a PDF file of a soil map in the Middle Rio Grande Valley near Albuquerque, New Mexico however it is dated in 1914. I was able to split the north and south because it came in one map and ...
2
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1answer
29 views

Stacking overlapping rasters, keeping cell values on top?

I have a land cover classification that consists of three files. One file is the LCC for the western half of my study area, another covers the eastern half (these two overlap in the middle), and the ...
2
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4answers
151 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 ...
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22 views

change raster values in a specific region on a single band

I am currently using ERDAS IMAGINE 2013. I have a 28 Band MODIS image. In one of the bands, I need to change the values of a certain region. I tried the following: Load the .img file into IMAGINE. ...
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47 views

split multi-band raster to separate rasters in ERDAS IMAGINE

I am currently using ERDAS IMAGINE 2013. I have a 28 Band MODIS image. Is there any way in IMAGINE I could split the 28 bands of the MODIS image into single band images?
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23 views

Layer stacking in ERDAS?

When I am doing layer stacking of the liss iv image and ndvi generated from the same image, the output generated is white (flat) in ERDAS Imagine. How to solve the problem?
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0answers
44 views

Why image do not color match when many Landsat images are mosaicked in ERDAS?

When I try to mosaic Landsat images in ERDAS I get as result image with discordance in colors. I tried histogram matching but no success. The images were captured between March and May.
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0answers
68 views

Use a Python script to stack layers from multiple directories and produce multiple outputs in ERDAS

I am using ERDAS Imagine 2013 and am trying to create a Python script that takes lists created in another script containing the path to each scene's raw data folder and base image ID's (for example ...
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0answers
16 views

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 ...
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0answers
78 views

Methods of cloud shadow detection for Landsat data?

Detecting clouds doesn't seem to be much of a problem, rather the challenge is in selecting cloud-shadow classes that don't also include coastal areas, agriculture, etc. For a project I'm working on, ...
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23 views

Segmentation - problem with mosaic tiles

Could you please tell me how to solve my problem with segmentation in ERDAS ? I am using ERDAS 2013 and the tool Image Segmentation to segment my multiband picture (with high resolution). ...
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64 views

MODIS MOD09A1 processing

modis state flag for MOD09A1 data (Surface Reflectance 8-Day L3 Global 500m) is different for each 8 day composite. I have 10 years data how to extract the cloud information in batch? and is their any ...
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4answers
461 views

Creating a Time series NDVI map

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 ...
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46 views

ERDAS Imagine ecw compression settings

We have some jp2 or img satellite images that we compress to .ecw using ERDAS Imagine. We have realized that with some images we are losing too much information while doing that. What i wanted to ask ...
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1answer
9 views

Question about ERDAS TOC

On occasionally when I open a raster in ERDAS 2013, I get white or yellow circle icons on my ERDAS Contents and tried to find information on ERDAS. I want to know what does the icon mean ? Thanks ...
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2answers
73 views

Where can i use a sieve filter?

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. Thank you
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1answer
173 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 ...
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67 views

ERDAS Imagine 2013 NDVI fail

i have a problem with NDVI in Erdas Imagine. Instead of NDVI image it makes a mask, which is not suppose to make. Do anyone know where the problem is?
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1answer
232 views

How can I convert ERDAS img file into headerless binary file

I have trouble to convert ERDAS .img file into headerless binary file. I want to use those images in TIMESAT program. I'm trying to do this in IDRISI 32. But there is an error saying "minimum values ...
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4answers
102 views

Looking for simple software to compare two Landsat Images

At uni I used ERDAS imagine to view two rasters at the same time and it had various viewers for comparing them. I'm looking for something that has a slider so that I can see the differences between ...
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3answers
346 views

Will Toshiba Satellite 70-A-11h meet GIS student notebook requirements?

I'm just about to start a college to study GIS and I need new notebook computer. I would like a one that will last me for awhile and that can run the ArcGIS and ERDAS Imagine programmes that are ...
3
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4answers
192 views

Some remote sensing tutorials [closed]

I could use some tutorials on remote sensing, but some books provided they are free, would be useful. To be specific, tutorials on ERDAS Imagine, ENVI and other remote sensing software, general ...
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4answers
668 views

Alternatives for ERDAS Imagine

I am having trouble with the ArcGIS 10.1 and ERDAS Imagine 9.2 license conflict. From what I found out it isn't that rare, but interestingly enough why is there such a conflict in the first place? ...
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2answers
97 views

How to copy/move Mosaic Dataset to another location?

On my previous question on Mosaic Dataset vs. ERDAS 2011 Is ERDAS 2011 or ArcGIS 10.1 best to use when mosaicking 100's of ECW image files?, I did research for a bit was wondering what happens if you ...
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1answer
569 views

how to do change detection in ERDAS

I'd like to ask a really simple question. I want to obtain the size of unchanged, decreased, and increased area etc (just like shown in image below) from 2 classification images in 2000 and 2007. How ...
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1answer
84 views

How to reduce the resolution of satellite imagery data for used in matlab

When I am using the 4band multispectral data for NDVI calculation, after successful completion of runtime, it shows some warning message like "loading 17%..."How could I rectify it? should I do any ...
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83 views

How to identify DSM anomaly using Erdas Imagine

I am having IFSAR DSM. I want to detect anomaly (both Spikes and depressions) to fix in the process of DTM editing. Since the file is too large I chose automation for the process of detection. I tried ...
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0answers
106 views

Error when converting .shp to .dxf

I have created a polygon shape file in Erdas Imagine 9.2 from a raster image. I want to export it to .dxf or .dgn for further processing. When I export the .shp to .dxf in Global Mapper, large ...
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1answer
118 views

Using Mosaicking Images in Erdas software

Do you know any dissertation which has written about Mosaic briefly? I did the Mosaic for my Landsat images but i want to explain and write about but i do not know how and what shall i write about it ...
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0answers
307 views

Enhanced vegetation index using ENVI 4.7 bandmath

I computed Enhanced Vegetation Index using band math in ENVI 4.7 software. The expression used was: 2.5*((float(b1)- float(b2))/(float(b1)+ (6*float(b2)) +(7.5* float(b3)))) BYTSCL(float(b1), min = ...
7
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1answer
142 views

Options for manually identifying road defects from Terrestrial Lidar

I am trying to create a process to identify road defects manually from Lidar. We have Erdas 2013, ArcGIS10.1 and Global Mappper 14.2 as options for paid software. So far Merrick Mars displays the ...
4
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0answers
499 views

Why is GDAL ECW compression much poorer than ECW compression from ERDAS

We use ECW compressor shipped with ERDAS Imagine to export Orthoimagery for our different departments. Because we are facing problems with the Imagine license server, we had to choose GDAL (built with ...
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2answers
322 views

georeference IMG file in qgis

I have a problem: I'm trying to georeference a satellite image (ASTER, Erdas Imagine file *.img) in QGis. I have georeferenced with QGis before and never had any problems. The file is georeferenced ...
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1answer
571 views

Problem with ERDAS and GIS programm installation [closed]

ARCGIS 10 and ERDAS 8.7 were already installed in my computer. But I want to open both programs at the same time. If ARCGIS can open properly, ERDAS cann't open and vice verse, showed that following ...
2
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0answers
133 views

ENVISAT ASAR .N1 file is not being opened by ERDAS IMAGINE 2011

I am not able to open ENVISAT ASAR .N1 file in ERDAS IMAGINE 2011. The software has direct read option for files of this format. Whenever I try to open the file, software closes automatically giving ...
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1answer
121 views

How do I classify or spot a pixel, based on a specific reflectance values of the six Landsat Bands using Erdas?

I have converted the DN values to the reflectance of a Landsat image to classify the rice field by its stages. To specify the reflectance values of each stages, I have sampled the reflectance values ...