DSS2 and image cut out features

[admin]

We finally put DSS2 live - http://www.sky-map.org
The survey loaded now by default, but you have option to switch between surveys from drop down menu under "DSS" button.

We still working on new more clean DSS2 version. New version will include better color balancing, better tile edges handling, better faint objects view and more.

We also improved quality of image processing in general by implementing advanced pixel interpolation algorithms and configurable jpeg compression quality.

Here's the example of image cut out URL:
http://server5.sky-map.org/imgcut.jsp?survey=DSS2&img_id=all&angle=1.1&ra=20.77&de=30.65&x_shift=0&y_shift=0&width=1000&height=512&projection=tan&rotation=-95&reverse=0&interpolation=bicubic2&jpeg_quality=.95


where:
survey - survey used, for now can be "DSS2", "ASTROPHOTO"
img_id - list of images separated by semicolon (useful for "ASTROPHOTO" survey)
angle - angle of vew by x axis in degrees
ra = Right ascension of projection center in hours
de - Declination of projection center in degrees
x_shift - image cut horizontal shift in pixels relative to projection center
y_shift - image cut vertical shift in pixels relative to projection center
angle
width and height - dimensions of output image
projection - output image projection ("tan" - tangent projection)
rotation - output view rotaion in degrees, rotation=0 - north is up, rotation=-90 - north is left
reverse - set to 1 for mirrored image
interpolation - pixel interpolation ("nearest", "avg", "bilinear", "bicubic" and "bicubic2")
jpeg_quality - quality of jpeg compression (0.25 - lowest quality, 1 - highest quality)

For asrtophoto survey use img_id parameter to choose image to show:
http://server9.sky-map.org/imgcut.jsp?survey=astrophoto&img_id=646&angle=1.1&ra=20.77&de=30.65&x_shift=0&y_shift=0&width=1000&height=512&projection=tan&rotation=-95&interpolation=bicubc2&jpeg_quality=.95

You can combine multiple images there:
http://server9.sky-map.org/imgcut.jsp?img_id=646:128&angle=1.1&ra=20.77&de=30.65&x_shift=0&y_shift=0&width=1000&height=512&projection=tan&rotation=-95&interpolation=bicubc2&jpeg_quality=.95

To remove outlined borders set img_border=0:
http://server9.sky-map.org/imgcut.jsp?img_id=646:128&angle=1.1&ra=20.77&de=30.65&x_shift=0&y_shift=0&width=1000&height=512&projection=tan&rotation=-95&interpolation=bicubc2&jpeg_quality=.95&img_border=0


Image Ids in "img_id" parameter separated by semicolon (":"). First image in the list will be o top, last one on bottom.

[ian]

You've done a brilliant job so far. Keep up the excellent work

[admin]

You've done a brilliant job so far. Keep up the excellent work

Thank you, Ian


SKY-MAP Team

[admin]

Few more features worth to mention:

1.
To put your image over DSS2 survey use following query:
http://server1.sky-map.org/imgcut.jsp?s ... orders=646

Basically you need to set two parameters:
img_id=646:all
, where 646 is image id designated by sky-map when you match your image.
img_borders=646
include it if you want to outline the image

2.
You can cut DSS2 or any other image and match it with projection of your image.
Suppose you have this image:


Then to produced matched cut out of DSS2 use following query:
http://server1.sky-map.org/imgcut.jsp?s ... uality=.95

or set survey to "astrophoto" and img_id to any set of existing image to make cut out of other astrophoto images that cover same area:
http://server1.sky-map.org/imgcut.jsp?s ... uality=.95

[andrea38]

Hello!
I like your work,
very amazing,
love it...............
Thanks...