Week in Pictures - Macleans.ca

Week in Pictures

7 days in 15 photos



Week in Pictures

  1. Would be nice if you could speed up the process of getting through the pictures. It took forever to download each one. Conrad was beside himself.

    • Get a faster computer. I had no trouble.

      • It’s not the speed of the computer. I have a top line Mac Pro & they are slow for me too (so much so that often it’s not worth the wait to see them all).
        The images are too high-resolution for their purpose and therefore their size is unnecessarily large = slow download.
        The images are 300 dpi at “High Quality” JPG compression. But 72 to 100 dpi is the resolution of most computer monitors. 100 dpi would cut the image file size by at least 80% with no noticeable difference.
        Alternatively, 300 dpi compressed to “Low Quality” JPG file would also be much smaller and the resolution quality would be unnoticeable on a computer screen.

        • You are misinformed about dpi, which is only relevant to printing. Two identical pictures with different dpi values are exactly the same size on your screen (where each image pixel is represented by one display pixel) and are stored in files identical except for the two bytes holding the default value for the number of pixels to be printed on a linear inch of paper (dpi or, more accurately, ppi). Given that layout software does the necessary scaling for print jobs, this embedded value is seldom used.

          You are right, of course, that the compression algorithm affects the file size.

          • That’s really not totally correct – all monitors have a maximum dpi resolution, but I agree I didn’t explain it very well. Try this: download the Polar bear image and then open it in Photoshop. You will see that it is 2393 x 1584 pixels in size. That’s more resolution than a typical home computer monitor and much bigger the little window in which it is displayed. So your system down-samples it when displayed. If the original was downsampled before Macleans posted it, to perhaps something like 600 x 400 pixels, it would download much, much faster, and would appear pretty much identical to the larger version.
            Of course if you download the image for printing, then yes, -the larger image will be much sharper.

          • Point taken, but this has nothing to do with the ppi of your screen (as opposed to its pixel dimensions) or the so-called dpi of the images. It’s a source of much confusion.

  2. Conrad has a bad attitude.

  3. The fat man, too Funny!!!!