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DPI, image size, cameras, websites, argh?

  • da_Doctah

    @Cassidy said:

    @morbiuswilters said:

    It seems pointlessly pedantic to pretend you don't know that when most people say "resolution" what they mean is "the number of pixels in an image".

    I took "resolution" to mean "dimensions" for years, given that several OSen use the term in that way (and many monitor manufacturers too, in the older CRT days). However, I've since taken it as "quality" when researching digicams - I've read "greater resolution" as packing more pixies per inch (DPI) and "brighter and more vibrant resolution on your holiday snaps" with a printing service.

     

    I don't see what the big deal is.  "Resolution" is simply the reciprocal of "granularity".

     

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  • ?

    @Cassidy said:

    SATA is also IDE

    ... what?

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  • ?

    @Spectre said:

    @Cassidy said:
    SATA is also IDE

    ... what?

    Yes, technically, that is correct.  However, in common usage, IDE has come to only mean "Parallel ATA (PATA)".  It is not technically correct, but it is widely used and understood.  Feeling the need to to "explain" to someone that SATA is IDE is just another form of Pedantic Dickweedery®.

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  • blakeyrat

    @El_Heffe said:

    @Spectre said:
    @Cassidy said:
    SATA is also IDE

    ... what?

    Yes, technically, that is correct. However, in common usage, IDE has come to only mean "Parallel ATA (PATA)". It is not technically correct, but it is widely used and understood. Feeling the need to to "explain" to someone that SATA is IDE is just another form of Pedantic Dickweedery®.

    That's not "another form", that's the classic form of pedantic dickweedery.

    But anybody who seriously types "OSen" is irredeemable, so far away from human experience that there's simply no way of getting this information through its thick skull. So I'm afraid you're wasting your time.

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  • ?

    @blakeyrat said:

    But anybody who seriously types "OSen" is irredeemable, so far away from human experience that there's simply no way of getting this information through its thick skull. So I'm afraid you're wasting your time.
    That's a new one.  Never heard it used before now.  But number one on my list of people who need to be shot in the face with a hammer is still anyone who refers to a computer as a "box" and multiple computers as "boxen".

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  • ?

    @El_Heffe said:

    @Spectre said:
    @Cassidy said:
    SATA is also IDE

    ... what?

    Yes, technically, that is correct.  However, in common usage, IDE has come to only mean "Parallel ATA (PATA)".  It is not technically correct, but it is widely used and understood.

    I'd like to see some proof, please.

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  • C

    @Spectre said:

    @El_Heffe said:
    Yes, technically, that is correct.  However, in common usage, IDE has come to only mean "Parallel ATA (PATA)".  It is not technically correct, but it is widely used and understood.

    I'd like to see some proof, please.

    Proof it's used.

    Not necessarily proof that it's widely used, nor proof that it's understood, but proof it's used by some merchants (and thus understood that way by many of their customers).

    (in the case of eBuyer: they used to have categories for IDE and SCSI - I suspect they just renamed the SCSI category to SATA and repurposed it)

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  • ?

    @Cassidy said:

    @Spectre said:

    @El_Heffe said:
    Yes, technically, that is correct.  However, in common usage, IDE has come to only mean "Parallel ATA (PATA)".  It is not technically correct, but it is widely used and understood.

    I'd like to see some proof, please.

    Proof it's used.

    I meant proof that "SATA is also IDE", durr.

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  • dhromed

    @Spectre said:

    I meant proof that "SATA is also IDE", durr.
     

    IDE is a form of ATA, namely, Parallel ATA i.e. PATA, superseded by Serial ATA i.e. SATA.

    striked out because of lern2read, not because of falsehood.

    Yeah, SATA is not IDE in any remote way, shape or form.

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  • C

    From what I understood (was A+ Hardware, some years back) SATA and PATA originated from the Integrated Drive Electronics standard, but people used "IDE" to mean "PATA" rather than SATA.

    I originally took "non-IDE" to mean "SCSI" back in those days, but that was in the context of HDs (hell, even a floppy wasn't IDE).

    Perhaps I've been taught wrongly - but hardware's moved on faster than I've kept up (and I've not needed to nowadays) that it ain't much of an issue to me nowadays.

    (I recall some years back a client telling me they don't use SCSI disks anymore, they use SAS instead. It took me a bit to figure out what they meant...)

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  • C

    @smxlong said:

    Thanks for your incorrect assumptions on DPI and what it means. My favourite bit was where you said that changing the DPI of the image means resampling it.

    An image has a true physical size given by its DPI. If you change the DPI without resampling, you are changing the physical size of the image. But you aren't being asked to change the physical size of the image, you are being asked to change its DPI. The only way that can be accomplished is to resample.

    So when I print the same picture at 600 DPI (tiny) and 120 DPI (massive) using the windows printing wizard, does that mean my printer is resampling my image?

    Yes. How else would the image become larger if all you've done is change a few values in the image header? The DPI of the printer is FIXED (it may have more than one possibility but it can't be set to just anything you please). The DPI of the image is not fixed. If the image is printing at different sizes then something somewhere is resampling the image. It could be the print app, it could be the driver, or it could be the printer itself which does it. But it happens somewhere. Printers do not work at arbitrary resolutions.

    I think were having arguments about two separate things here and I put some words down that didn't really make much sense in the printing context. I agree, the printer resamples the image, but this is driver/hardware. Since the print res for printers is usually (dot-matrix anyone?) a lot higher than 120DPI the printer needs to enlarge the pixel data that it receives to match the 'dot size' that you want to print at - however, I was talking about changing the DPI of the image at the data level though, I don't think I've ever heard anyone ask me to change the DPI of an image before.

    I think the fact that I left out the 'for web use' bit skewed the rant a little (and I saw the error message that was coming up on the site it was destined for)

    Thinking about it further, I can see how any graphics dude asking me to tweak a DPI would mean 'change the pixel data' - so you are not talking bollocks at all

    It is almost impossible to post on here without being wrong (or trolled) about something, unless you are blakeyrat

    Anyway - the rant still stands and they were stupid. At least I'm trying to be right

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  • A

    @Charleh said:

    It is almost impossible to post on here without being wrong (or trolled ) about something, unless you are by blakeyrat

     

    ftfy

     

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  • ender

    @El_Heffe said:

    However, in common usage, IDE has come to only mean "Parallel ATA (PATA)".
    I never heard of PATA until after SATA appeared - before it was just IDE and SCSI.

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  • ?

    @ender said:

    @El_Heffe said:
    However, in common usage, IDE has come to only mean "Parallel ATA (PATA)".
    I never heard of PATA until after SATA appeared - before it was just IDE and SCSI.

    Old acronyms die hard.

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  • Zylon

    @ender said:

    I never heard of PATA until after SATA appeared - before it was just IDE and SCSI.
    PATA is a most likely a retronym, like "manual transmission" when automatic transmissions were introduced.

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  • ?

    @ender said:

    I never heard of PATA until after SATA appeared
    I don't think the acronym PATA existed until after SATA came onto the market.  There was no need for it.  Once SATA came along, then there was a need to differentiate between the two.

    Similar to the situation with the old "ISA" slots for expansion cards.  Nobody called it ISA until PCI came along.  Then somebody came up with "Industry Standard Architecture (ISA)" to differentiate from the new-fangled PCI.  

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  • S

    @ASheridan said:

    @Charleh said:

    It is almost impossible to post on here without being wrong (or trolled ) about something, unless you are by blakeyrat

     

    ftfy

     

    No.  You didn't.  You changed his quote to insert YOUR opinion. 

    @ASheridan said:

    Something derogatory about myself
    SEEE?  HOW DO YOU LIKE IT?!!!!

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  • blakeyrat

    See I can troll topics without even posting in them. The student has become the master.

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  • dhromed

    @blakeyrat said:

    I can troll topics without even posting in them.
     

     I have to admit that this is quite an impressive feat. Not sure if slowclap, but still p good.

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  • Lorne Kates
    Trolleybus Mechanic

    @blakeyrat said:

    See I can troll topics without even posting in them. The student has become the master.
     

    And yet you did post. True trollightenment is still beyond you.

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  • da_Doctah

    @Lorne Kates said:

    @blakeyrat said:

    See I can troll topics without even posting in them. The student has become the master.
     

    And yet you did post. True trollightenment is still beyond you.

     

     When you can troll without trolling, ass-groper, then it will be time for you to leave the monastery.


     

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  • dhromed

    @da Doctah said:

    ass-groper
     

    Almost died by my tea.

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  • A

    @da Doctah said:

    When you can troll without trolling, ass-groper, then it will be time for you to leave the monastery.


     

    If a blakeyrat trolls in a forum board, and there are no users to read it, does its rants make a sound?

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