IPB

Welcome Guest ( Log In | Register )

21 Pages V  < 1 2 3 4 > »   
Reply to this topicStart new topic
MSL Post First Drive - Intermission, Start of Drive to Glenelg, Intermission between CAP 1B and 2 - Sols 17 through 29
paraisosdelsiste...
post Aug 25 2012, 01:33 PM
Post #16


Member
***

Group: Members
Posts: 101
Joined: 20-August 12
From: Spain
Member No.: 6597



Every new frame is a surprise for me. With the new raw frames from right MastCam downloaded some minutes before... we have a vertical panorama!

Attached Image


This is the little version. If you want to see the full version of the panorama, go to: http://www.ungeologoenapuros.es/wp-content...XX-Panorama.jpg It's 8 MB.

Comments and suggestions are welcome!

Go to the top of the page
 
+Quote Post
Ant103
post Aug 25 2012, 01:33 PM
Post #17


Senior Member
****

Group: Members
Posts: 1504
Joined: 12-February 06
From: Bergerac - FR
Member No.: 678



An other unbayered image.



There is not only Photoshop in image processing life, I'm actually using ImageJ with the "debayer" plugin, available here (scroll down). Then, in ImageJ set the image in 16bit mode. Then, go to "plugin>debayer" (you should have install it in the correct folder in order to have it in your plugin list). The best method is "R-G-R-G", set Demosaicing Algorithm to "Adaptive Smooth Hue" (I think it gives the best results). Checkbox "Display color image". Et voilà ! Save or do whatever you want with your debayered image smile.gif.


--------------------
Go to the top of the page
 
+Quote Post
john_s
post Aug 25 2012, 01:58 PM
Post #18


Member
***

Group: Members
Posts: 579
Joined: 3-December 04
From: Boulder, Colorado, USA
Member No.: 117



Great images, especially the vertical panorama!

I'm puzzled why we are still seeing hue quantization in these de-Bayered images, as we did in the color JPEGs. Why would JPEG compression of the Bayer pattern produce that effect, rather than just randomly perturbing the colors?

John
Go to the top of the page
 
+Quote Post
ugordan
post Aug 25 2012, 02:18 PM
Post #19


Senior Member
****

Group: Members
Posts: 3631
Joined: 1-October 05
From: Croatia
Member No.: 523



QUOTE (john_s @ Aug 25 2012, 03:58 PM) *
Why would JPEG compression of the Bayer pattern produce that effect, rather than just randomly perturbing the colors?

Since the checkerboard bright/dark appearance of the Bayer pattern in grayscale depends on the original color of the scene, various blocks can end up having different DCT frequency domain component breakdowns, but not all frequency components are quantized equally. This, I think affects the amount of pixel crosstalk. If one overlays a Bayered image over a color one, one can see the places that experience color shfts have a distinctly different checkerboard pattern feel to them. Not completely the same mechanism as banding in highly compressed color images, but I guess you can say the root cause is the same.

I like this M-100 shot:
Attached Image


--------------------
Go to the top of the page
 
+Quote Post
paraisosdelsiste...
post Aug 25 2012, 02:51 PM
Post #20


Member
***

Group: Members
Posts: 101
Joined: 20-August 12
From: Spain
Member No.: 6597



It's even possible to achieve a good, but not perfect, combination of MastCam left and right to make some anaglyphs, but the resolution is not as good as it could be due to the difference of angle of vision.

Attached Image

Attached Image

Attached Image
Go to the top of the page
 
+Quote Post
Tesheiner
post Aug 25 2012, 03:35 PM
Post #21


Senior Member
****

Group: Moderator
Posts: 4277
Joined: 19-April 05
From: .br at .es
Member No.: 253



QUOTE (paraisosdelsistemasolar @ Aug 25 2012, 03:33 PM) *
This is the little version. If you want to see the full version of the panorama, go to: http://www.ungeologoenapuros.es/wp-content...XX-Panorama.jpg It's 8 MB.

That's beautiful.
I really think the right 100mm camera won't stop providing us stunning shots.
Go to the top of the page
 
+Quote Post
elakdawalla
post Aug 25 2012, 04:02 PM
Post #22


Administrator
****

Group: Admin
Posts: 5159
Joined: 4-August 05
From: Pasadena, CA, USA, Earth
Member No.: 454



That vertical panorama is terrific.

I have no sense of how large the pebbles are in the foreground -- I think they may be quite tiny. We need the Mystery Man -- and maybe the Mystery Man needs a Mystery Mouse companion to show us the size of those pebbles!

There are some cleat-marks in the soil midway down. What's the cleat-to-cleat distance on a MSL wheel?


--------------------
My blog - @elakdawalla on Twitter - Please support unmannedspaceflight.com by donating here.
Go to the top of the page
 
+Quote Post
climber
post Aug 25 2012, 04:24 PM
Post #23


Senior Member
****

Group: Members
Posts: 2818
Joined: 14-February 06
From: Very close to the Pyrénées Mountains (France)
Member No.: 682



Also interesting to note one rock sinkage after been roved over


--------------------
Go to the top of the page
 
+Quote Post
Ant103
post Aug 25 2012, 04:24 PM
Post #24


Senior Member
****

Group: Members
Posts: 1504
Joined: 12-February 06
From: Bergerac - FR
Member No.: 678



Yes, great work Parai' smile.gif

My own version (full res available by clicking the image) :



And there is also a M34 pan, incomplete for now, I think.



The M100 vertical pan is pretty large in vertical. Imagine now a full 360° acqured with this camera. No, my computer will die way a lot before finishing stitching only a half of the pano. A quick math :

The last M34 pan was 29 006 px wide for 3635 height. This column from M100 is 14 799 px, so about 14 800 px. A little cross product :

29 006 => x
3 635 => 14 800

y => 29 006 × 14 800 / 3 635
y => 118 098

So, this will result in a panoramic of about 118 000 pixels wide !! This is HUGE ! Is there computer which can just open such a huge picture ? ph34r.gif I pass my hand…


--------------------
Go to the top of the page
 
+Quote Post
NickF
post Aug 25 2012, 04:32 PM
Post #25


Member
***

Group: Members
Posts: 107
Joined: 29-January 09
Member No.: 4589



Thanks for that great deBayering tip Ant103! Here's a very simple stitch in the meantime.

Attached Image




--------------------
Protein structures and Mars fun - http://www.flickr.com/photos/nick960/
Go to the top of the page
 
+Quote Post
Stu
post Aug 25 2012, 05:08 PM
Post #26


The Poet Dude
****

Group: Moderator
Posts: 5551
Joined: 15-March 04
From: Kendal, Cumbria, UK
Member No.: 60



Well, well, well... turns out Registax has a DeBayer function...

Attached Image


Now all I have to do is work out how to get rid of the terraformed hills, and the handfuls of emeralds scattered over the ground... laugh.gif


--------------------
Go to the top of the page
 
+Quote Post
Reckless
post Aug 25 2012, 05:23 PM
Post #27


Member
***

Group: Members
Posts: 221
Joined: 25-March 05
Member No.: 217



In reply to Emily's question judging by this NASA JPL image the Zig-Zag cleats look about 5 cm apart.
Roy
Attached thumbnail(s)
Attached Image
 
Go to the top of the page
 
+Quote Post
djellison
post Aug 25 2012, 05:31 PM
Post #28


Administrator
****

Group: Chairman
Posts: 14166
Joined: 8-February 04
Member No.: 1



QUOTE (Ant103 @ Aug 25 2012, 09:24 AM) *
So, this will result in a panoramic of about 118 000 pixels wide !! This is HUGE ! Is there computer which can just open such a huge picture ? ph34r.gif I pass my hand…


Easy - just host it at the Gigapan website smile.gif
Go to the top of the page
 
+Quote Post
RoverDriver
post Aug 25 2012, 05:59 PM
Post #29


Member
***

Group: Admin
Posts: 974
Joined: 29-September 06
From: Pasadena, CA - USA
Member No.: 1200



QUOTE (elakdawalla @ Aug 25 2012, 08:02 AM) *
...
What's the cleat-to-cleat distance on a MSL wheel?


The grousers are 15 deg apart, therefore the distance is about 6.5cm.

Paolo


--------------------
Disclaimer: all opinions, ideas and information included here are my own,and should not be intended to represent opinion or policy of my employer.
Go to the top of the page
 
+Quote Post
stewjack
post Aug 25 2012, 06:27 PM
Post #30


Member
***

Group: Members
Posts: 252
Joined: 5-May 05
From: Mississippi (USA)
Member No.: 379



Here is my attempt at an anaglyph using ANT103's work and just playing around with StereoPhotoMaker. I just warped the hell out of those graphics. I see 3d but my eyes tell me they are being twisted in there sockets! laugh.gif

Attached Image





Note: It is possible that I used a medium resolution version of ANT 103's MastCam100's Graphic! The resolution could be much worse than it should be. I just clicked on the images and copied them to my clipboard. Then pasted them into IrfanView.
Go to the top of the page
 
+Quote Post

21 Pages V  < 1 2 3 4 > » 
Reply to this topicStart new topic

 



RSS Lo-Fi Version Time is now: 16th June 2019 - 05:06 AM
RULES AND GUIDELINES
Please read the Forum Rules and Guidelines before posting.

IMAGE COPYRIGHT
Images posted on UnmannedSpaceflight.com may be copyrighted. Do not reproduce without permission. Read here for further information on space images and copyright.

OPINIONS AND MODERATION
Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators.
SUPPORT THE FORUM
Unmannedspaceflight.com is a project of the Planetary Society and is funded by donations from visitors and members. Help keep this forum up and running by contributing here.