A commonly used method of lossy compression for photographic images

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2answers
122 views

How to save QGIS composer template with image - e.g. company logo?

I can't figure out how to save QGIS Print composer template with image. In our map compositions we always have company logo in one place. It is easy to add image (logo) to composer and place it to ...
1
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1answer
2k views

Leaflet export to jpg

Does anybody know if there is a way to export the current view of a Leaflet map to jpg? The setup is as follows: Leaflet is hooked up to an Oracle database. Depending on user interaction, various ...
1
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1answer
121 views

What causes wrong placement of JPGs in QGIS 2.8.1?

I have the same issue explained in this post: How to keep georeferencing from ArcGIS when importing raster into QGIS? But my problem is with .jpg files. I have georeferenced with ArcGIS 10.2.2 many ...
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1answer
60 views

jpg to geotiff transformation with gdal_translate and gcps fails

I am trying to create a geotiff from a jpeg by inputting gcps with gdal_translate: gdal_translate -of GTiff -a_srs EPSG:4326 -gcp [1616.0 0 -121.459869532 38.5822533549] -gcp [0 0 -121.460081357 ...
0
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2answers
69 views

Convert jpg raster format to tif format

I have 120 rasters( jpg format ) and i want to convert them to tiff format to folder called "OtherFormat" in env.workspace with arcpy. In my code i try to convert all jpg file I read ...
0
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1answer
35 views

Same Image and Shapefile are not overlapping in ArcGIS for Desktop?

An image is Digitized in ArcView 3.3 with JPEG extension; But not with Image analysis extension. When I open that image and shapefile in ArcGIS 10.1 for Desktop then they are not overlaping each ...
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1answer
108 views

Image Processing for vegetation detection using NDVI technique

I have a MODIS 250m resolution satellite image in jpg format.How do i do image processing using NDVI technique on it? Basically i have to detect vegetation for a 250m resolution MODIS image using NDVI ...
2
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1answer
60 views

How can I open a jpg format with QGIS 2.8?

I'm having some difficulties opening the jpg format at QGIS 2.8. It opens, but nothing appears. Thanks for your help!
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1answer
102 views

Using ArcGIS model to batch export set of layout view as JPEGs?

I have a large number of layout views I would like to export as JPEG maps using ArcMap 10.0. The layout view is based upon a user defined grid. Normally what I would do is manually select a grid, ...
3
votes
2answers
271 views

How to use user made png/jpeg icons in QGIS 2.0?

I can only add svg icons in qgis 2.0. How can i use png or jpeg or gif images as icons in qgis2.0?
2
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1answer
32 views

Can JPEGs have overviews?

I was a little surprised to see the output of a .jpg file when gdalinfo said it had overviews. Can jpegs really have overviews or what does this mean? Can they be removed to reduce file size? Image ...
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1answer
83 views

Export to images subsets of Spatial Points Data Frame

I have a csv file, which I converted it to Spatial Points Data Frame. And I want to split the spatial data and export each map to a jpg file. I did the following: SB <- read.csv("SB_040914.csv", ...
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1answer
49 views

Georeferencing jpg via Gdal_translate output a GIS tif 15.5 times bigger [duplicate]

Given as input a light 874kb jpg, I use gdal_translate -a_ullr (source) to reinject GIS georeferencing : -a_ullr ulx uly lrx lry : Assign/override the georeferenced bounds of the output file. ...
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1answer
85 views

Saving Map on Server Side as Image File

I am trying to save my openlayers map on the server, following these instructions, the sections Client-side: Tile collection and Server side: PHP: ...
1
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1answer
152 views

Pro vs Con on using export to JPEG or JP2000 files for large imagery files

What is the preference among GIS Specialist and Remote Sensing Specialist using the JPEG vs JP2000. Yes, I am aware of other compressed files such as ECW or MrSID... I am more of concern of how to ...
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0answers
144 views

Print Composer QGIS 2.6, how to expot image?

When i finish map in print composer and click on Export to an image format and after i go to folder where i saved it there is no image. If do same with Export as PDF i get PDF file but cant open it ...
2
votes
1answer
363 views

Convert from ecw to jpg

I am trying to converta batch of ecw aerial photos to jpg in arcmap using the ( Raster to other format) but each time it converts 4 or 5 images and then fails and show this message. i tried to ...
1
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1answer
538 views

multiple graphics added to ArcGIS javascript API map are not printing (using MapExport) reliably

I combined samples for Printing with graphics https://developers.arcgis.com/javascript/jssamples/widget_print.html and labeling ...
2
votes
1answer
147 views

How to convert an esri world file .jgw into xy corner coordinates?

I'm trying to convert a .jgw (esri worldfile) into xy corner coordinates for a series of JPEG images im outputting using arcpy.mapping.ExportToJPEG(mxd, "E:\\TEMP\\" + str(x) + ".jpg", df, ...
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0answers
20 views

Large Jpegs, handling in ARCGIS

I am working with 10s of large raster data, each one is from jpeg, around 65000x22000 pixels, I have a normal laptop, with 8 Gb of RAM and i5 processor. Can any one give me guidance on how do i make ...
2
votes
2answers
2k views

ExportToJPEG() arcpy script failure

I'm attempting to writing a python script that will automate exporting a set of stock maps to JPEG from their mxd files, and I'm having some strange issues getting there. I've alternatively been ...
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2answers
52 views

How to read page size from a MapDocument object

I hope this isn't a duplicate question, I have had a look but couldn't find an answer. I have a set of 30 MXD's with different page size. I would like to export maps with their name file which include ...
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2answers
288 views

convert a *.jpg scanned from line paper map to vector data in arcgis

I want to digitize automatically old paper map that scanned to jpg . I know that it's possible to digitize it with arc-map but I can not remember how to do it.
2
votes
3answers
108 views

How to create Map from jpeg in Arcgis 10

I'm pretty new to Arcgis software and going to create map. I have some points which should be shown on the map( there are temperatures of cites). So, I need to create a map in arcgis. I guess! What I ...
4
votes
1answer
379 views

Problem converting georeferenced jpgs to geotiff - image is shifted/warped

I have hundreds of georeferenced jpgs in ArcGIS 10 that I need to convert to geotiffs. I'm trying to use GDAL translate to create geotiffs from them. Everything works great except that the ...
2
votes
2answers
131 views

Adding jpeg. files and not displaying in colour

When I try to add a jpeg file into my project on Arc it displays only in black and white. I have checked the file and it is definitely in colour. Does anybody know how I can add such files in the ...
5
votes
3answers
1k views

How to drape a simple jpeg image over dem of some area?

How can we drape a simple jpeg image which doesnot have any geo referencing information over the digital elevation model in order to visualize it in 3D in QGIS?
5
votes
1answer
2k views

Exporting map to jpg (multiple times with python)?

I set symbology and exported each raster in my mxd (one by one) to jpg file. My script is ok and it works (it is shown at the bottom). The question is: how can I customly set my legend? Now I have ...
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1answer
59 views

QGIS processing does not support jpg

I would like to work with the gdal functions provided in the processing toolbox. It is easy to call: import processing processing.alglist() ...
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0answers
46 views

Where can i find Shapefiles of city along with the world file (.jgw) and the jpg image?

Are there any links where i can download a shapefile of a certain city along with aerial view jpeg image and the corresponding world file (.jgw) ? I need it to test an algorithm. Thanks,
2
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2answers
425 views

Why does ArcMap not see *.jpeg files?

I want to georeference a *.jpeg object but I cannot even add the data to ArcMap which does not seem to see the files?
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0answers
18 views

Shape file generation [duplicate]

Is it possible to generate a shape file with lines and polygons using only the image for which it has to be generated ? I need the lines,polygons feautres of the shape file in an algorithm which i am ...
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2answers
4k views

Android offline app to visualize GeoTIFF maps (or any well-known raster format)

I like to go to mountain, and got lots of GeoTIFF maps, which I can convert to other formats with GlobalMapper (JPG+JGW, ECW, ...). However, I haven't found an Android app to: - show these raster ...
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1answer
126 views

GDAL TIF to JPG Creates Dark Image

I'm using the GDAL Raster>Translate to create JPGs from Georeferenced TIFs. The translation is working, but the resulting JPGs are significantly darker than the TIFs they are being created from. ...
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0answers
26 views

Why do text boxes and arrows shift position when exported from print composer to jpeg QGIS 2.2

I have created a map using a 1:20000 WMS layer. On top of this I created a shapefile layer tracing a mapped stream. In print composer I added a couple of text boxes with arrows pointing to certain ...
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1answer
84 views

How to choose a coordinate reference system

I have a jpeg image of a reserve's layout and would like to use it to plot animals movements on i.e. GPS points. I have no idea which coordinate reference system to choose during the "georeferencing" ...
3
votes
1answer
95 views

Is there free GIS reader that supports transparency of JPEG layers? [closed]

I need to make from my ArcMap layers (which are georeferenced JPEG files) a file that can work on a free and easy to use program. The program needs to be able to open multiple layers so we can put ...
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1answer
199 views

How to export Raster to JPEG in Python?

I built a model to import table data, create xy event, kernel density and clip density raster. I would like to export the clipped raster as a JPEG but I am not sure how to write the ExportToJPEG code. ...
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1answer
44 views

What is default compress number for jpg2000 when exporting?

I have a file geodatabase that has 635 GB Imagery I copied from Mosaic Dataset. I am trying to export it to jpg2000 to a new file geodatabase. I am thinking what is the default compress number for ...
2
votes
2answers
389 views

How to add an image to an existing data frame using Python?

This is the first time I am using Python on my own, and I have searched for this answer for a few hours with no luck. I am wanting to take a .JPG image and put it in a data frame. The image has to ...
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vote
2answers
351 views

Where to find Icon library for custom GIS software?

I am building a desktop application and currently utilizing a mix of icons for pan, select, zoom, attribute table, etc that have been randomly taken from the internet and modified. The overall look ...
2
votes
5answers
163 views

Georeferencing a .jpg image

I am having a .Jpg image of a district. I need to georefernce it. The problem is that I can able to find only one control point of it . All other line features (are Roads) which I cant able to match ...
0
votes
3answers
202 views

Computing distance of a georeferenced .jpg to each polygon (town) in a shapefile

I have a .jpg that is a highway that spans multiple towns, and a shapefile with boundaries of these towns. I have georeferenced the .jpg so that it is aligned with the shapefile of the towns. My ...
2
votes
0answers
290 views

QGIS 2.0.1 connecting to ESRI WMTS jpeg vs jpg

I'm currently trying to troubleshoot an issue I have connecting to ESRI WMTS services. Esri ArcGIS Server seems to provide the format as JPEG via the rest service, but in the get capabilites ...
6
votes
5answers
2k views

Automate SHP to JPG creation

Does anyone know of a way to batch convert shapefiles to jpegs or another common image format? edit: I should have clarified that I would like to apply a styling to each shapefile, and then export ...
4
votes
1answer
407 views

gdal_translate- why jpg compressed tif is 2 times greater than jpg file?

Using the following two commands yields completely different size files: gdal_translate test.tif -of GTiff -co "COMPRESS=JPEG" -co "JPEG_QUALITY=100" output.tif and gdal_translate test.tif -of JPEG ...
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1answer
354 views

Why does Exporting Document to JPEG using ArcObjects in Layout View result in bad picture quality?

I want to export the Active View with ArcObjects to JPEG. All Layers in the Document are raster layers (GeoTiff). I use this code which works quite well when in Data View, but when I perform the same ...
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vote
1answer
134 views

Is it possible to convert a jpg file into lyr

I am a beginner with GIS 10.0. IS there any way to convert a jpg file into a layer? I am working on a problem that needs to have the entire map of my city as a layer but I just have a jpg file of the ...
3
votes
4answers
8k views

How can I import georeferenced photos (jpg, kml, kmz) using QGIS or ArcGIS for Desktop?

I've got several georeferenced digital photos as jpg, kml, and kmz. How can I import them into my GIS projects (QGIS or ArcGIS for Desktop) so I can open them as a popup?
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vote
0answers
935 views

Create a jgw file for jpg image.

I converted ecw file into jpg file with IrfanView, to display the jpg as base layer in openlayers. I understood that I need to create a jgw file to display the jpg file. I found this example: ...