A commonly used method of lossy compression for photographic images

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4
votes
2answers
537 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?
1
vote
1answer
36 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 ...
4
votes
1answer
276 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 ...
1
vote
1answer
71 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. ...
0
votes
1answer
35 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
211 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 ...
1
vote
2answers
74 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
100 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
182 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 ...
0
votes
1answer
76 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?
1
vote
0answers
113 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
717 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 ...
3
votes
1answer
149 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 ...
1
vote
1answer
128 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 ...
0
votes
0answers
65 views

Qgis: Can prt or python generate high res, scale 1:250 images of entire map?

I need to create a very high resolution, scale 1:250, image from my multi-layer map (30 seconds x 40 seconds). The PRT function in Qgis falls short as it reduces the resolution when using PRT. Also ...
1
vote
1answer
63 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 ...
0
votes
0answers
51 views

Where can I find a shapefile of UK ITV regions?

I'm using UK ITV regions (see http://www.itvmedia.co.uk/new-to-itv/itv-regions) for similar reasons that DMAs are used in the US. While there are tools that can convert JPGs to shapefiles, I do not ...
1
vote
1answer
317 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 ...
3
votes
4answers
4k 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?
1
vote
0answers
317 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: ...
0
votes
1answer
109 views

Can you use a large file directory of jpgs for without georeferencing

I have a large map data set of 256x256 jpg images. The file directory is organized by /map_type/zoom/x/y.jpg. I have 12 zoom levels and each zoom level directory has 2^(2*zoom level) images. I have ...
2
votes
1answer
187 views

Why are JPG files invisible in Georeferencer?

I want to georeference a jpg file (map) with QGIS 1.8.0 on a Windows 7 (64 bit) machine. The georeference window opens, but the map is not visible. When converting the jpg file into a tif file (e.g. ...
2
votes
1answer
383 views

Problem with convert georeferenced jpg to geotiff

I'm beginner with GIS tools. I have jpg file with GPS data and I need reference this file to Microstation as georeferrenced raster. I tried use function Raster -> Conversion -> Translate with defined ...
3
votes
2answers
265 views

ArcMap: Not scaling and/or rotating when exporting a map

I am writing a console application using ArcGIS (engine or desktop). I'm trying to rotate and scale a map based on a polygon, and I'm not having any luck at all. With some tinkering, I can usually do ...
4
votes
3answers
6k views

Converting a .jpg map into a shapefile

I have a .jpg map of a set of U.S. counties that were affected by a tornado. The map shades where the tornado passed through, resulting in some counties only partially experiencing the tornado. I ...
2
votes
1answer
2k 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 ...
4
votes
1answer
1k 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 ...
2
votes
1answer
933 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 ...
0
votes
0answers
414 views

can't add JPG files into QGIS?

I can't add JPG files into QuantumGIS. I get an error message "C:\Spatial_Days\Data\Working\AP_Coast_Export.jpg is not a supported raster data source". I am using QGIS 1.7.4 Wroclaw with GDAL 1.8.1 ...
1
vote
0answers
38 views

I want to georeference jpg map without having any digitizing data? [duplicate]

Possible Duplicate: I want to georeference jpg map without any digitizing data? I have only a jpg map but dont have any digital data for georeferencing that jpg.So is there any way for ...
1
vote
2answers
2k views

I want to georeference jpg map without any digitizing data?

I have only a jpg map but dont have any digital data for georeferencing that jpg.So is there any way for georeferencing my map (like googlemaps)?
5
votes
2answers
229 views

Wavelet vs Discrete compression for imagery

What is the main reasons to choose wavelet (jp2, sid, ecw) instead of discrete (JPEG) compression methods for raster data? Lets limit this question to aerial imagery and lossy compression. Why ...
4
votes
1answer
480 views

Using PNG/JPEG Compression in GeoServer

Is there any use in setting the PNG and JPEG compression in GeoServer (Services - WMS - PNG Options/JPEG Options)? The default is 25, but we heard rumours that having compression resulted in a time ...
1
vote
2answers
900 views

Converting from GEOTIFF to JPEG2000

I need to convert raster from one format to another (geotiff-->jpeg2000). First I tried with very simple workspace, having input geotiff and direct to output jpeg2000, but I got error message: ...
1
vote
1answer
197 views

Which is the best Android tool to visualize JPG+JGW images?

I've got some georreferenced JPG+JGW images, and would like to visualize them on my Android device. Which is, in your opinion, the best tool? I've tried OSMdroid (after converting JPG+JGW with ...
2
votes
0answers
206 views

Importing Rasters to ArcSDE 9.3.1 using sderaster

OK, I am trying to import a raster to 11g using the sderaster command. It is a stand alone jpg with a world file associated, and pyramids. Am I right in assuming I cannot import a JPG, I can only ...
1
vote
2answers
212 views

Setting Rasters to the exact same display

I have been tasked to make a series of .jpeg outputs of different sections of a dike displaying elevation data. My problem is that the data i have been given is GIGANTIC, almost the whole region made ...
8
votes
6answers
820 views

How do I generate thumbnails images from lots of shapefiles?

A colleague and I recently released an Open Source project called Mapoteca which is a set of Python Scripts that integrates with a GDAL/FWTools installation allowing a full walk-through of directories ...
1
vote
2answers
2k views

Hyperlink relative paths to files in points layer in QGIS?

I would like to add hyperlinks to each point in a points layer in QGIS 1.7.0 running on Mac OS X 10.6.7, but I have several requirements: (1) Each hyperlink has to be a relative path to the linked ...
3
votes
2answers
927 views

JPG file all black when added as raster in QGIS

I add a new raster layer in the latest QGIS and select a JPG file, but it is all black. I tried adding the TIF version of the same image and that worked. What is it with the JPG, and how should I ...
3
votes
3answers
367 views

Can a raster map in GRASS be saved in JPEG/BMP format?

I'm trying to save a raster map in GRASS in jpeg/bmp format without using the GUI for d.out.file/d.save. Is there a script to do it? I tried r.out.gdal but it produced a map that is black and white.