T or E

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by tvanflandern</i>
<br />Every spacecraft image is available in raw, completely unprocessed format for anyone who wants it that way. <hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Tom, can you give us an example of that? Or a link? I'm not sure what you mean by that.

rd

"Everything we deal with here is based on perspective..
Having the right one is the problem.." [Trinket]

"I see no reason to couch your answers in riddles." [Mr. Spock, "City on the Edge of Forever."]

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by rderosa</i>
<br />can you give us an example of that? Or a link? I'm not sure what you mean by that.<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">See the anciliary data page for any MGS image. It offers a link to "Download compressed raw data in PDS .IMQ format". That's the original raw data just as it arrived from the spacecraft. -|Tom|-

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by tvanflandern</i>
<br />"Download compressed raw data in PDS .IMQ format". That's the original raw data just as it arrived from the spacecraft.
<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">

Ok thanks. That's what I thought at first, but then when I looked, I saw the word "processed" in the previous line, and just missed the word "compressed" in the last one.

Do you need special software to view a PDS.IMQ file. I vaguely remember seeing something about Unix?

rd

"I wasn't trying to riddle..
It's just that perspective is so random.." [Trinket]

Sounds like you're in a conundrum, in that you see this as a perplexing question or problem. What do you see as the solution?

<blockquote id="quote"><font size="2" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by rderosa</i>
<br />Do you need special software to view a PDS.IMQ file. I vaguely remember seeing something about Unix?<hr height="1" noshade id="quote"></blockquote id="quote"></font id="quote">You need a progrm that recognizes that image format. I think Photoshop does, but I haven't tried in years, so I'm no longer sure. Few have the time or patience to deal with raw data because every channel in the CCD has a slightly different sensitivity, so all raw images appear to have stripes. This camera effect must be removed from the raw data by "flat-fielding" or some other means. Various techniques have been developed by people who need to work at that level.

Having tried it, my conclusion was to settle for the GIF version of the images, which is as close to raw as I care to get. -|Tom|-