[X] My Assistant

[Exploitcorporati...]

Global mosaic:

[Malmer]

I finally finished a color panorama using UV IR GRN for color and CLR for luminance.

I used Philip Stookes hyperion shape model to reproject the images into a common projection.

The color balance is just guesswork. Is hyperion more reddish?

HYPERION IN COLOR

Exploitcorporations; You work fast! Excellent work all the way!


Mattias

[RPascal]

I finally finished a color panorama using UV IR GRN for color and CLR for luminance.

I used Philip Stookes hyerion shape model to reproject the images into a common projection.

The color balance is just guesswork. Is hyperion more reddish?

Excellent work!!!
On Wikipedia there is an article about Hyperion with a colorized (?) Voyager image that is said to show the real color - I do not know how correct it is, but then Hyperion should be somewhat more red. Perhaps you can find the origin of this information.
--René

[tedstryk]

Excellent work!!!
On Wikipedia there is an article about Hyperion with a colorized (?) Voyager image that is said to show the real color - I do not know how correct it is, but then Hyperion should be somewhat more red. Perhaps you can find the origin of this information.
--René

Here is the Wikipedia image


It is the third from the right in my set.


What is significant is that this image, unlike others in the sequence, is only available via a clear filtered view, so it is clearly utilizing color data from other images (and, I suspect, just a general monochromatic overlay)

Using OGV processing combined with super-resolution processing, I constructed this color view of the image that is second from the right. It has very similar color to the Wikipedia image.



I think it is therefore reasonable to conclude the orangish color is due to the difference in filters being used, and is worsened by the fact that the sloppy colorization of the Wikipedia image doesn't allow for any varations across the disk.

[Malmer]

Using OGV processing combined with super-resolution processing, I constructed this color view of the image that is second from the right.  It has very similar color to the Wikipedia image.

What software do you use to do superresolution. I can only find something called QE superresolution and it is kindof crappy...

/Mattias

[Bjorn Jonsson]

What software do you use to do superresolution. I can only find something called QE superresolution and it is kindof crappy...

/Mattias

I simply use RegiStax. It is mainly used for stacking and processing planetary images obtained using webcams (in that case usually hundreds of images) and I have used it for that but it also works very well for stacking spacecraft images.

[tedstryk]

I simply use RegiStax. It is mainly used for stacking and processing planetary images obtained using webcams (in that case usually hundreds of images) and I have used it for that but it also works very well for stacking spacecraft images.

Registrax works well with stacking images at original resolution. But, especially with images that are of varying quality and somewhat different illumination (in the case of Viking lander images), I find that better registration can be done manually. I know Phil Stooke and Tim Parker use a similar technique to mine. Tim Parker blows the images up by 1000 percent. For me, that makes them unweildy and does not gain anything better than at 500 percent.

[Malmer]

Registrax works well with stacking images at original resolution.  But, especially with images that are of varying quality and somewhat different illumination (in the case of Viking lander images), I find that better registration can be done manually. I know Phil Stooke and Tim Parker use a similar technique to mine.  Tim Parker blows the images up by 1000 percent.  For me, that makes them unweildy and does not gain anything better than at 500 percent.

Ill give it a shot... It would be nice to get some extra detail into the parts of the hyperion picture with lowresolution material. There are quite a few pictures that can be stacked together... so maybe its worth the extra labour...

/Mattias

[tedstryk]

Ill give it a shot... It would be nice to get some extra detail into the parts of the hyperion picture with lowresolution material. There are quite a few pictures that can be stacked together... so maybe its worth the extra labour...

/Mattias

One word of caution. I have had little success using this technique with the Cassini jpegs. It has worked well with pds-released Cassini images, but the compression in the jpegs negates the improvement in resolution. I end up just enhancing the jpeg artifacts.