Questions tagged [erdas-imagine]

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

Filter by
Sorted by
Tagged with
1
vote
1answer
979 views

ERDAS file not recognized as ERDAS Hierarchal File Architecture (EFHA)?

I am trying to do an accuracy assessment in Erdas using "user defined ground control points" (I collected the GPS points myselfin the field using a handheld GPS). However, when I load the thematic ...
1
vote
1answer
806 views

Enabling Erdas ECW files in gdal

I want to enable read support from Erdas ECW files in gdal on windows. I have GDAL binaries from http://www.gisinternals.com/sdk/ and i also have a self compiled version. when compiling myself I ...
1
vote
1answer
1k views

Converting data type in ERDAS IMAGINE and ArcGIS for Desktop?

My tif image data type is float (i.e. my data is between -1 to +1) and I want to convert it into 8bit unsigned integer. I used ERDAS IMAGINE import tool to do this, while converting it into img also. ...
1
vote
1answer
3k views

How to display the one band layer in pseudocolor using ERDAS Imagine?

I am a new user in ERDAS imagine and i found it hard to turn the single band raster data from grey color to pseudocolor using ERDAS imagine. This process could be easier to be performed using ER ...
1
vote
1answer
1k views

Erdas Imagine DN to TOA reflectance for SPOT images

I would like to convet DN to TOA reflectance in Erdas Imagine 2013. I see there is a way of doing this for Landsat7 in the Radiometric tab. How can I do this for SPOT2,4,5 images?
1
vote
1answer
454 views

create a vegetation mask using Landsat 7 [closed]

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 ...
1
vote
1answer
367 views

Running Erdas command in MS-DOS

I have generated the following command line in ERDAS, and want to run it in MS-DOS. Getting an error- "system cannot find the path specified". I have checked the path by opening it in windows ...
1
vote
1answer
1k views

How to perform a standard deviation stretch on a raster in QGIS

Is there a way to perform a (2) standard deviations stretch on a raster image in QGIS 2.2? I have found the raster styles menu, but the help says there is no help in my language (English) and whilst ...
1
vote
1answer
300 views

How can I choose values from stacked raster images according to location of ROI

Before I choosed ROI on land surface temperature (LST) images and obtained pixel values of LST. Now I need pixel value of another images which are stacked multi-band image. My main purpose is to ...
1
vote
2answers
4k 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 ...
1
vote
1answer
140 views

can i merge resolution with float single data type

Can I merge resolution with both image is float single data type? I have done this, but the output image become white. Do the data type must be in unsigned-8 bit for the merge to be success?
1
vote
1answer
968 views

How to Extract Data from U.S. National Landcover Dataset (NLCD) dataset?

I am working with U.S. National Landcover Dataset (NLCD) to classify habitat type at more than 150 sites across the northeast U.S. The dataset is very large (15GB) so I cannot upload it here, but it ...
1
vote
1answer
462 views

ERDAS Imagine batch wizard edit replacement pattern help

I'm using ERDAS Imagine to batch produce NDVIs from NAIP imagery. I need to also replace the default file name (e.g. "m_3610132_nw_14_1_20100503") with a user friendly file name (e.g. 3610132nw). ...
1
vote
0answers
63 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 ...
1
vote
0answers
31 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
0answers
52 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 ...
1
vote
0answers
308 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
158 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 ...
1
vote
1answer
156 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 ...
1
vote
0answers
31 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
0answers
111 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 ...
1
vote
0answers
31 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 ...
1
vote
0answers
76 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 ...
1
vote
0answers
59 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 ...
1
vote
0answers
204 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 ...
1
vote
0answers
66 views

Mosaicking landsat imagery before LULC classification

I have to perform change detection of several years for Central Indian Landscape. I have corrected the atmospheric aberrations of the Landsat 8 imageries using the semi-automatic classification plugin ...
1
vote
0answers
163 views

Editing classified image raster in ArcGIS Desktop?

I have an unsupervised classification dataset of a SPOT 6 image created in ERDAS IMAGINE and I now want to edit the class names in ArcGIS Desktop 10.2. I have done this successfully for a number of ...
1
vote
1answer
261 views

Accuracy Assessment in Erdas Imagine 2015

I'm trying to achieve accuracy assessment in Erdas, but I've faced some difficulties due to my lack of knowledge about it. I've finished an object based classification in eCognition, but whenever I ...
1
vote
0answers
85 views

Classification during DEM generation for Bare Earth Surface-ERDAS

I am using ERDAS photogammetry tools(eATE) to generate a bare earth type DEM from two Pleiades satellite images(pan-sharpened 0.5 cm resolution). I have run the process and the results were just OK. ...
1
vote
0answers
264 views

Negative values in DEM after mosaic? [closed]

I downloaded 2 1/3 arcsecond DEMs from the national map as .img files. First I ran the Mosaic to New Raster tool in Arcmap. The values of the first DEM are 49.0551 to 1111.13. The values for the ...
1
vote
0answers
214 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 ...
1
vote
0answers
90 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 ...
1
vote
0answers
70 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 ...
1
vote
0answers
428 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 ...
1
vote
0answers
53 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?
1
vote
0answers
86 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 ...
1
vote
0answers
74 views

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? ...
1
vote
0answers
128 views

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, ...
1
vote
0answers
230 views

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 ...
1
vote
0answers
401 views

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 ...
1
vote
0answers
493 views

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 ...
1
vote
0answers
62 views

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 ...
1
vote
0answers
80 views

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?
1
vote
0answers
145 views

Erdas Imagine 2011 removing points from polygons

I've been running into an issue with Erdas Imagine 2011. I have been creating training sites in a polygon shapefile to use with a decision tree classifier but it seems like the software keep ...
1
vote
0answers
66 views

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.
1
vote
0answers
205 views

Data format in ERDAS IMAGINE 2014?

I performed radiometric correction analysis on Landsat 8 image ( format: integer unsigned 16 bit) in ERDAS IMAGIN 2014. However, the output image would be created if I could select format: float 32 ...
1
vote
0answers
609 views

Opening image in ERDAS Imagine

I am trying to open a .img image fil in ERDAS Imagine and I keep getting the message "End of file reading dictionary" with ERDAS not responding. The program gets stuck here and I have to shut it down. ...
1
vote
0answers
85 views

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 ?
1
vote
0answers
51 views

/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 ...
1
vote
0answers
505 views

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?