Color-Matching Multi-County Imagery with Photoshop and ArcGIS

1. Color-
Matching
Multi-County Imagery
with Photoshop
and ArcGISBy Jacob Coble, TLCGIS
78gis5

2. When colors don’t match…
If you want to combine images from multiple
sources/jurisdictions, it might not look very good.

3. A lot of things can make the images
appear different and less than ideal
• Images might have
been taken
with different cameras.
• Images might have
been processed
differently.
• Images might look hazy.
• The colors might appear
“off” or different.

4. But there are things you can do about it.
Why settle for this…

5. When you can have this!

6. View the TLCGIS EOC Region 2 Image Service
in ArcMap or in your Browser!
(Leon County is a separate Image Service)
https://interraster.leoncountyfl.gov/interraster/rest/services/ImageryServices
/TLC_Imagery2016_EOCRegion2_D_WM/ImageServer

7. Overview of Processes
• Step 1. Obtain Mr. Sid files (unless you have original tiff images).
You can obtain aerial imagery files in Mr. Sid format from here:
http://www.fdot.gov/geospatial/aerialmain.shtm

8. Overview of Processes (continued)
You have to have a free account with the FDOT A Plus website in order
to be able to download large sets of images, such as for an entire
county. You submit a request and they will e-mail you a temporary link
where you can download the images (it might take them a few days to
fill the request) You don’t need an account if you just want to
download several images.
Another option is using the www.labins.org website. The Florida
Department of Environmental Protection’s LABINS website is a
clearinghouse for all sorts of GIS data, including aerial imagery. You can
download one high-resolution image at a time using the Quick Search
map or you can purchase larger sets of data from LABINS. See
www.labins.org for details

9. The LABINS website is a source
for aerial imagery and other
GIS data.