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Posts for: John_F
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Jun 17, 2019 11:46:18   #
The delegates to the Republican convention will come from the months-earlier local precinct caucuses. Yes, there will be Super Delegates, but they will not outnumber the elected delegates. The Trump certainty rhetoric is really intended to discourage sensible Republicans from attending the caucuses and running for delegate.


Steven Seward wrote:
What does that last sentence mean?
 
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Jun 17, 2019 11:39:01   #
2020 is not 2016 - the electorate, especially in the swing States, are very much more aware of exactly what Trump is. There is a record of performance and the Democrats have many top-drawer candidates to choose from. My favorite is Amy Klobuchar.


EyeSawYou wrote:
Just like you thought it was easy to beat Trump in 2016 right?
Jun 17, 2019 11:30:56   #
A pixel is just a name for a cluster of bits. Those bits can be devoted to whatever the firmware program causes them to represent. My point was that 16 bits can be divided into 3 groups of 5 bits plus 1 leftover bit. The three fives could be devoted for the Red, Green, and Blue color channels resulting into a lousy 32 color shades per channel. Eight-bit color (256 shades per channel) is generally standard for color printers. Any pixel depth that is less than 24 bits shortchanges color fidelity. See why compression is necessary.


BebuLamar wrote:
Not 5 bit per color. In the RAW file each pixel only has 1 value and not 3 values (RGB). This is the greatest difference between RAW and any other image files formats.
Jun 17, 2019 11:14:17   #
Make sure you save the seeds for replanting.
Jun 17, 2019 11:12:21   #
For the House to proceed with Impeachment will deflect attention away from the REAL business of the Democrats, which is the 2020 Election Campaign. Impeachment chatter will drown out the messages of those running for Presidential endorsement. Don’t like Trump, think he deserves impeachment; well, it is easier to defeat him in 2020. By the way, what makes his endorsement such a Republican certainty.
Jun 16, 2019 12:09:43   #
To my way of thinking a raw image file should represent the actual charge state of every charge center on the sensor. In digital terms this will be a long string of “0”s and “1”s. The job of the camera’s firmware is to organize this string into rows and columns with color representative. With my Sony a6300 a (6000 by 4000) 24 MP iraw image is 25+ MB as read by the computer. So a 14-bit pixel depth image ends up being 8-bit pixel depth in conputer. What is in the computer is what any image editing app will operate on and Photoshop will make a 3 byte color depth for each pixel. It is clear some algorithm does such.

My constant harp is that the entire problem is due to there being no standard raw file format. That is what the Joint Photographics Group did to make the JPEG image format. They had to accommodate the needs of all sectors of the pictures/illustrations industry.
 
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Jun 16, 2019 11:44:55   #
A 16 MP image yielding a 34 MB file means the pixels are 16 bit depth. The excess 2 MB file size would be file overhead - but a bit way high tho. At a 16 bit pixel depth the 3 color channels (RGB) could be 5 bits. When such a file comes into Photoshop, PS will create 8 bit color channels. PS can be adjusted to make greater bit depth color channels, but production color printers might not be able to handle such color detail except for certain specialty equipment.


BebuLamar wrote:
I think he meant 16MB (MegaByte and not MegaBit) but that means each pixel is only 1 byte or 8 bit. It's possible to store 14 bit RAW at that size but it has to be compressed.
My uncompressed RAW from a 16MP camera is 34MB. I think the camera takes the 14 bit value and store it in 2 bytes (16 bit). That would make it simpler but of course takes more storage space.
Jun 16, 2019 11:23:06   #
Streets wrote:
I wonder when this topic will be covering the sub-atomic physics level of raw vs. jpeg. We appear to be getting close. Just shoot jpeg and use the extra time you have by enjoying the outdoors.


I await the reply that invokes “string theory” to clarify ‘raw vs compressed.’
Jun 14, 2019 17:15:59   #
John_F wrote:
I once conducted a raw image experiment in which a raw 6,000x4,000 pixel image having 24,000,000 pixels was saved in a SSD card and read in computer. At 16 bits per pixel the filed would have to exceed 48,000,000 bytes (the excess for file header data). In fact, the Mac reported a file size of a bit over 25,000,000 bytes. Bottom line is the 24 Mp could not have over an 8 bit depth. Where did the other claimed 8 bits go? Is this whole debate a dreamland.


I should have mentioned my camera was the Sony α6300. Different cameras different results as one reply reported.
Jun 14, 2019 17:11:08   #
Linda From Maine wrote:

I would not want to be the person who deletes someone's topic because it doesn't meet a stricter definition, either there or here in close-up.


When that situation arises we have a teaching and learning moment. These moments are rare and rarer still when an example is involved.

Everyone can learn something.
Jun 14, 2019 16:59:50   #
Why does the running board look curved in #1 and straight in #2 ?
 
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Jun 14, 2019 16:56:13   #
Are you diabetic, if yes then your eyes are at risk. You should have at least annual retina and general eye exams. Are your bifocals continuous or the old fashioned kind. The former take practice to get used to. Good luck.
Jun 14, 2019 13:58:51   #
I once conducted a raw image experiment in which a raw 6,000x4,000 pixel image having 24,000,000 pixels was saved in a SSD card and read in computer. At 16 bits per pixel the filed would have to exceed 48,000,000 bytes (the excess for file header data). In fact, the Mac reported a file size of a bit over 25,000,000 bytes. Bottom line is the 24 Mp could not have over an 8 bit depth. Where did the other claimed 8 bits go? Is this whole debate a dreamland.
Jun 14, 2019 13:45:22   #
jaymatt wrote:
Just sittin’ and thinkin'


Or waiting for wifey to finish her dress shopping.
Jun 14, 2019 13:14:03   #
I get this Soc Sec scam call sometimes several times a week. I don’t respond because to do so confirms our phone number is alive & well. Quite a while ago, I copied SS numbers from the death index of dead people of my first name or last name initial for use with scammers. But I have lost that list, its somewhere among my papers, so the idea goes for nought. Sigh.
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