Questions tagged [erdas-imagine]
ERDAS IMAGINE is a remote sensing application with raster graphics editor abilities designed by ERDAS for geospatial applications.
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Input image does not match with signature file in supervised classification
I have a issue in supervised classification on ERDAS IMAGINE. When ever I performed supervised classification it gives a warning message. It says:
iInput image does not match signature's image ...
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25 views
How to find the Minimum value for the Dark Object Subtraction in ERDAS?
I have a Landsat 7 Image with MTL file showing minimum value as 1 and the maximum value is 255. The water pixels show a range of 63 to 74. In the image, there are a few pixels that have a value of 1, ...
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7 views
Extraction of reflectance value in ERDAS Imagine
How can I extract the reflectance value from a raster in ERDAS Imagine. If possible I would like to know the steps.
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1answer
36 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 ...
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13 views
Cloudmask for entire Sentinel-2 .safe directory
I'm using the fmask algorithm to produce cloud masks for Sentinel2-L1C .safe directories. The output is always a single .img file. Afterwards I'd like to compute easy indices like the ndvi on the area ...
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20 views
How to remove the black edges around Landsat 8 images in Erdas Imagine
I am new to Erdas Imagine and would like to know what is the right workflow for removing the Black "null" Edges around Landsat-8 Images.
When importing the scenes to .ecw, the color and contrast ...
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1answer
14 views
Differences between imported Landsat-8 images in Erdas Imagine
What is the difference between the images created after importing with USGS Landsat 8 dialog, in particular, the suffixes _msi and _msitir? I understand that they stand for multispectral image and ...
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22 views
Landsat-8 Image Enhancement for Mosaic in Erdas Imagine
My AOI lies inside a mosaic of 6 Landsat-8 squares and all the scenes have less than 10% cloud coverage. The rows of images of each of the 3 paths were taken only seconds apart.
When importing the ...
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23 views
Erdas does not generate tie points
I'm working with stereopair images (2 times 4 images) in Erdas Photogrammetry. I've converted them to IMG filetypes, setup interior orientation and put full GCPs on all images. I added few tiepoints ...
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107 views
Layer stacking Multispectral reflectance imagery in ERDAS Imagine 2016
I have Green, red, Red edge and Near infra-red reflectance maps captured with a Parrot Sequoia camera and post processed with Pix4D.
They are all Single Float Tiff files, around 500Mb in size.
I ...
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36 views
Why does a raster that consists of 3 bands appear greyed out?
I have a raster that is formed by stacking the bands blue, green and red of "Landsat 8", when it is displayed on Erdas Imagine 2015 it appears as if there is a semi-transparent grey layer over it, the ...
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1answer
76 views
Preparing two images with different dimensions to use in Agisoft PhotoScan
I have two aerial photos that are flowed over the national forest. The photos were scanned by a contractor and they came in various dimensions for each photos.
The one I have had smaller dimension ...
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47 views
Converting .ers raster to .shp?
I am trying to convert .ers-raster into shapefile using ERDAS. It keeps saying "input must be thematic". Any solutions to this or any other method by which I can convert .ers raster into shapefile, ...
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1answer
33 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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1answer
652 views
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 ...
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1answer
144 views
Pleiades atmospheric correction
I have phr1a and phr1b images (Pleiades) and I need to make atmospheric correction. First, I tried to do this by using Envi FLAASH. by the way, I tried also ERDAS atcor but there was also same ...
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84 views
Unsupervised classification in ERDAS imagine
I am trying to make a classification to run some index ( like NDVI) to see the change over time using the image difference function. Is it possible to do an unsupervised classification on one image ...
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1answer
156 views
ERDAS Imagine signature picker colour changing RGB numbers?
I've noticed something with the signature picker in ERDAS and I was wondering if it is a bug or a feature.
When I create classes I assign a colour to make them easily readable in the classified ...
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45 views
Reprojecting a SHP in QGIS to used it in ERDAS
I´m trying to created a AOI in ERDAS with a shapefile, but this shapefile had a projected system different to system that my image has, because of that I changed the projected system of the shp in ...
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1answer
117 views
Masking an image in Erdas using Thematic Image, the mask comes out looking wrong and completely different than input image
I am trying to mask out shadows and clouds in a WV2 8-band image. I classified an image to identify the shadows and clouds and then using the mask took in erdas used the classified image to mask out ...
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1answer
56 views
Extracting DEM from PRISM data?
I have PRISM data which is in the following format.
Are there any ways (software and methods) to extract the DEM or elevation information from these data files?
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1answer
127 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
...
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1answer
103 views
Histograms in Erdas Imagine staying grey
When I open the metadata in Erdas Imagine 2016 of a raster file (I tried several different raster files) the histogram at the histogram button stays grey. I already tried to change the setting of NAs ...
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1answer
1k views
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 ...
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69 views
Set multiple values to nodata - Erdas Imagine 2015
I am having trouble with the data ranges in the Landsat 8 surface reflectance product which I downloaded from USGS. The Lansat 8 surface reflectance handbook says the valid range is 0 - 10,000 range ...
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2answers
169 views
Projection shapefile
I created a shapefile of Sundarban area Bangladesh. Here it is:
Here is the projection information about it:
I want this shapefile to project upon an image which is here [I downloaded it from ...
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0answers
64 views
Vector-Viewing Properties on Multipoint Geometric Correction in Erdas Imagine 2014?
I am following some old instructions that are not up to date with my latest version of Erdas Imagine. Where can I find the Vector viewing properties within the Multipoint Geometric Viewer?
The ...
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1answer
65 views
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.
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2answers
3k views
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 ...
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419 views
landsat 8 images in ERDAS imagine 2014 is not mosaicking properly
I am trying to merge all 4 landsat 8 images in order to create land use land cover map, but its not merging properly.I layerstacked this images before merging. Should i download landsat images which ...
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1answer
237 views
Erdas Er Mapper: Annotation vector layer to Shapefile
I mapped some lines on Er Mapper 2014 with the Annotation tool (Add vector layer > Annotation/Map composition), so these lines are georeferenced and they got a specific width and colour.
I saved ...
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2answers
207 views
What Geometric model can I use for the old black and white aerial imagery?
I am working a lot of aerial photos that are very old and were scanned by a contractor. The flight were taken and snapshot over the national forest. The aerial photos are not georeference.
I am going ...
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1answer
253 views
Using Hybrid Classification? [closed]
I'm new to this field of study.
my teacher ask me to do a hybrid MLC and ISODATA classification for my bachelor thesis. so I got one journal that combine both method, but I think it too complex for ...
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33 views
Image displays in 3 RGB stripes across the surface
I layerstacked the Image in the screenshot above, but it is displaying in 3 stripes of RGB. Anyone who knows what the problem could be?
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1answer
189 views
Exporting many TIFFs issues in ERDAS Imagine 2016?
I have been having an issue with exporting TIFFs on my ERDAS Imagine 2016. The version is 16.00.0000 Build 650. When I need to run a batch to export many TIFFs and it would export one but then it ...
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158 views
Attribute table shows histogram/pixel count for a thematic raster image, but on enquiring, every pixel's value is zero
I have a thematic raster image containing 18 land use classes (like built-up, water bodies, plantations, forest, etc.). When I display this image in a GIS application (Arcmap/Erdas IMAGINE), the map ...
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1answer
648 views
Define vector projection and reproject shapefile in ERDAS IMAGINE 2013?
I come from a GIS background mainly using ArcMap and QGIS, but am now doing more image processing work and so have decided to start using ERDAS IMAGINE 2013.
I am attempting to project a shapefile ...
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1answer
356 views
Assigning signatures in Erdas Imagine 2016
I am having a problem in creating new signatures in Signature Editor in ERDAS 2016. Whenever I click on the icon to add signatures a pallette pops up that says:
"ERROR GETTING AOI FROM VIEWER, USE ...
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1answer
931 views
Classified image color in Erdas Imagine
I've a ArcMap classified image in tiff format. I want to open it in Erdas for further Accuracy assessment.
How to open the image in Erdas with same color ramp as it is given after classification?
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1answer
408 views
How to make subset from satellite images without getting empty border?
I have Landsat 5-8 images, and after creating subset for the area of interest there is an empty border on the image as black part. How to remove it or how to create subset without it? Here is the view ...
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0answers
33 views
Performing basic raster to shapefile conversion? [closed]
I am a novice when it comes to GIS. I am currently trying to use ERDAS imagine to classify habitat types using landsat 8 images. I'm able to run a supervised classification with the product being a ...
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2answers
301 views
Exporting Sentinel-2A imagery from QGIS to ERDAS Imagine 2013
I have downloaded a Sentinel-2 image and loaded the 10m bands from the .xml file in QGIS which works fine. I simply want to open the image in Erdas Imagine for use in accuracy assessment in a true ...
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0answers
92 views
Atmospheric correction in ENVI, export to ERDAS
I am working on a project using Hyperspectral imagery and have ERDAS Imagine on my home PC and have access to ENVI on another PC at University. Is it possible, for example, to perform the atmospheric ...
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0answers
60 views
Make Chessboard stack Image
I am learning some literature of works and came across a beautiful representation of image in chessboard form. That misaligned is not my current concern. We are group of bachelor students and are ...
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1answer
343 views
Aligning imagery in ERDAS Imagine?
I have two Imagine files that I need to mosaic. When I added these two in Erdas Imagine, there is a black gap between them, for example, they are not properly aligned. I know very little bit about ...
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2answers
727 views
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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1answer
1k views
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 ...
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363 views
How to do topographic correction of Landsat 8 image in ERDAS?
I am trying to perform a topographic correction of a Landsat 8 image using the C method described in the paper below. I am doing this in ERDAS IMAGINE Spatial Modeler. However, I am not sure how to ...
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1answer
312 views
How to download whole ECW or JPG tiles from web viewer?
I've found an online server which has some aerial tiles I'd like to save at maximal resolution for offline use, I'd even be happy with just the whole JPG picture to be later georeferenced again by ...
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3answers
204 views
How to assign mean values from different windows sizes to point feature?
I have points overlaid on an elevation raster as shown below;
The aim is to get mean value of each point computed from 3x3 window size covering its immediate neighbouring pixels.
It will be ...
