[Geotools-gt2-users] question about displaying geocoded images

[M. P. <m....@me...>]

Dear All,

I apologize if this has been discussed before.

To put it simply, ihave:

1. a set of, say JPEG, images.
2. a CSV file describing the lat-lon coordinate box for each of the
images (each record also include the coordinate system code, scale name,
image size in pixel, etc.), something like:

image_name, cs, width, height, x1, y1, x2, y2, x3, y3, x4, y4
image1.jpg, 4801, 2000, 2000, 135.123, 39.123, ...
image2.jpg, 4801, 2000, 2000, 135.123, 39.123, ...
....

3. the boundary of the whole area covered.

My objective is:

to have a simple function to get an image given any box within the
boundary (3) above with a specific CRS. Something like:

Image getImage(float x1, float y1, float x2, float y2,
CoordinateReferenceSystem crs);

This function supposed to get some portion of one file, some from
another, etc., should the box requested covers the area of more than 1
image.

I was thinking of using GridCoverage, and I tried to study
GridCoverage2D, FileSystemGridCoverageExchange, .. and other seemingly
related classes, but I am currently stuck on how to knit these things
together..

So, basically, my question is:

1. Is it even possible to use geotools to do what I wanted.
2. If it is possible, I would appreciate very much if anybody could give
me as much as a hint on which classes/methods I should go to.
3. If it is not possible, is there any other kind of data/file/info,
etc. that is required to achive this objective.

Thanks a lot in advance,

Purbo