Questions tagged [erdas-imagine]
ERDAS IMAGINE is a remote sensing application with raster graphics editor abilities designed by ERDAS for geospatial applications.
277
questions
-4
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29 views
Unsupportive compress type error in Erdas Imagine [closed]
I have downloaded images from USGS and when I am trying to layerstack the images it is showing unsupportive compressed type error.
0
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0answers
8 views
Need to change the histogram values in ERDAS Imagin 2014
Can I change values in a histogram column in the attribute table of continuous or thematic raster image in ERDAS Imagine 2014?
If yes, please explain where and how!
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26 views
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10 views
Solving color correction of LISS IV Multispectral image
I have a LISS IV multispectral images (radiometric resolution of 10 bit per pixel) taken in different months 4 tile in January and 2 tiles taken in February.
While mosaicing, I got a different color ...
0
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0answers
51 views
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 ...
0
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0answers
66 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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0answers
11 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.
0
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2answers
77 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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0answers
17 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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0answers
50 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 ...
0
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1answer
15 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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0answers
31 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 ...
2
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0answers
144 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 ...
1
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0answers
55 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 ...
0
votes
1answer
103 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 ...
0
votes
1answer
38 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 ...
0
votes
1answer
790 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 ...
0
votes
1answer
173 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 ...
1
vote
0answers
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 ...
2
votes
1answer
223 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 ...
1
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0answers
50 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 ...
1
vote
1answer
148 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 ...
0
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1answer
61 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?
2
votes
1answer
139 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
...
1
vote
1answer
124 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 ...
0
votes
1answer
2k 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 ...
0
votes
0answers
73 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 ...
0
votes
2answers
247 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 ...
1
vote
0answers
69 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 ...
0
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1answer
82 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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votes
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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vote
0answers
443 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 ...
1
vote
1answer
302 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 ...
0
votes
2answers
211 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 ...
1
vote
1answer
263 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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0answers
35 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?
1
vote
1answer
200 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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0answers
190 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 ...
3
votes
1answer
733 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 ...
2
votes
1answer
420 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 ...
1
vote
1answer
998 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?
1
vote
1answer
450 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 ...
1
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0answers
34 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 ...
3
votes
2answers
314 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 ...
1
vote
0answers
99 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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vote
0answers
63 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 ...
0
votes
1answer
367 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 ...
0
votes
2answers
772 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 ...
0
votes
1answer
2k 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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0answers
369 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 ...
