As far as I know image files in Mapt are just cosmetic. However I have a .gif that has
colors in it, a grid in fact from which I need to extract the color info (the
colors represent some habitat qualities where West Nile
virus mosquitoes can breed. This is easy to do in Idrisi
or Spatial Analyst, but I want to design an exercise using only Mapt for my spatial epidemiology class. Is there anyway to vectorize this image? Or does anyone have any brighter
ideas?
Thanks
Dick Hoskins
From: Stewart Berry
[mailto:[EMAIL PROTECTED]
Sent: Wednesday, January 12, 2005
7:58 AM
To: [email protected]
Subject: RE: [Maptitude] Re: image
files
Hi Pam
Please see <http://www.caliper.com/maptpric.htm>
for upgrade pricing. One
of our sales representatives would be happy to
contact you by phone to
discuss this further if that would be of help.
Kind regards
Stewart
At 10:50 AM 1/12/2005 -0500, you wrote:
>Right, I understand that you would recommend
upgrading to 4.7. My problem
>with that is there doesn't seem to be an
"upgrade" price; all I can find is
>the price to buy the whole thing all over
again.
>
>I'm a really small business and this is one of
the most expensive software
>packages I own. But everything else I've
ever purchased has an upgrade
>option, especially when it's a change from 4.6
to 4.7, and not a whole new
>version, like 5.0
>
>Pam Lardear
>Run
River Enterprises
>http://www.runriver.net
>315-559-0526
>"Helping you find your Way"
>
>
>-----Original Message-----
>From: Stewart Berry
[mailto:[EMAIL PROTECTED]
>Sent: Wednesday, January 12, 2005 10:13 AM
>To: [email protected]
>Subject: RE: [Maptitude] Re: image files
>
>
>Hi Pam
>
>I would definitely recommend upgrading to 4.7.
Otherwise any image
>conversion software used may degrade the
image.
>
>Stewart
>
>At 10:06 AM 1/12/2005 -0500, you wrote:
>
> >Hi Stewart,
> >
> >I have ver. 4.6; is there no hope for my
jpg files? The company I bought
> >them from says it cannot offer tiff.
> >
> >I tried bringing the image file into a
photo editor and saving it as .jpg,
> >and changing the extension on the world
file. The graphics came in, at
> >close to the same location (at least it
was on the map in the same area)
>but
> >the scale was no where near the same.
> >
> >Any hope?
> >
> >Pam
> >
> >
> >Pam Lardear
> >Run River
Enterprises
> >http://www.runriver.net
> >315-559-0526
> >"Helping you find your Way"
> >
> >
> >-----Original Message-----
> >From: berry_stewarttrancad
[mailto:[EMAIL PROTECTED]
> >Sent: Wednesday, January 12, 2005 9:51 AM
> >To: [email protected]
> >Subject: [Maptitude] Re: image files
> >
> >
> >
> >Hi Group:
> >
> >Maptitude 4.7 supports *.jpg files:
> >
> >The Joint Photographers Expert Group
(JPEG) file format, named after
> >the committee that wrote the standard, is
based on a mechanism
> >designed for compressing either
full-color or gray-scale images of
> >natural, real-world scenes. It works well
on photographs,
> >naturalistic artwork, and similar
material; it does not work so well
> >on lettering, simple cartoons, or line
drawings. JPEG handles only
> >still images (there is a related standard
called MPEG for motion
> >pictures). Maptitude can use pictures and
images stored in JPEG files
> >as layers in your map.
> >
> >JPEG is "lossy," meaning that
the decompressed image isn't quite the
> >same as the original image. JPEG is
intended for compressing images
> >that will be looked at by humans, because
is designed to exploit
> >known limitations of the human eye; you
are more sensitive to small
> >changes in brightness than to small
changes in color.
> >
> >JPEG is a less-desirable image format
than some others for two
> >reasons. It is slow to display, because
the file needs to be reread
> >(starting from the beginning) each time a
new portion of the image is
> >displayed. Formats such as ECW, MrSID,
and TIFF are designed so that
> >portions of the image can be displayed by
finding and reading only a
> >part of the file. Also, JPEG has a fuzzy
appearance and limited
> >resolution, especially for large-scale
display of map and other
> >images with linework and text. Formats
such as ECW and MrSID provide
> >increasing levels of resolution as needed
(to some limit) as you zoom
> >to larger scales.
> >
> >To use a JPEG file in a map with other
geographic layers, it must be
> >accompanied by a JPEG/World (.JPW) file.
This file contains
> >registration information for the JPEG
image, and Caliper registration
> >information is added at the end of the
file. The first time that you
> >open a .JPG file and its .JPW file, they
must be in a folder to which
> >you have write access so that Maptitude
can add the necessary
> >registration information.
> >
> >Stewart
> >
> >--- In [email protected],
"Pam Lardear" <[EMAIL PROTECTED]> wrote:
> > > I just purchase an aerial
photograph that I am trying to use with my
> > > Maptitude. It comes as a .jpg
with a .jgw World file. Is there
> >any way to
> > > use this with Maptitude, or to
convert it to the TIFF and TIFF
> >World?
> > >
> > >
> > >
> > > If not, can anyone recommend a good
source for aerial photos that
> >work?
> > >
> > >
> > >
> > > This is from Terraserver.
> > >
> > >
> > >
> > > Thanks,
> > >
> > > Pam
> > >
> > >
> > >
> > >
> > >
> > > Pam Lardear
> > >
> > > Run River
Enterprises
> > >
> > > http://www.runriver.net
<http://www.runriver.net/>
> > >
> > > 315-559-0526
> > >
> > > "Helping you find your
Way"
> >
> >
> >
> >
> >
> >
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
>
>
>Stewart J. Berry (BSc, MSc)
>GIS Specialist
>E-mail: [EMAIL PROTECTED]
>Phone: 617-527-4700
>Fax: 617-527-5113
>Caliper Corporation
>1172
Beacon Street, Newton, MA, 02461-9926,
USA
>Web site: http://www.caliper.com
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>Yahoo! Groups Links
>
>
>
>
Stewart J. Berry (BSc, MSc)
GIS Specialist
E-mail: [EMAIL PROTECTED]
Phone: 617-527-4700
Fax: 617-527-5113
Caliper Corporation
1172
Beacon Street, Newton, MA, 02461-9926, USA
Web site: http://www.caliper.com
Yahoo! Groups Links
