Question about Compaq Presario 1505US Notebook
This problem is only with the browsers, other images on my computer are perfect.Can anyone help me out ??
can you send me a snapshot of your browser with these images? and which version of IE and Firefox are you using?
Posted on Jul 02, 2009
Jpeg image files (typically files ending in ".jpg" or more rarely ".jpeg"),can be created to display in two different ways: "Standard" or "Progressive".When displayed, a standard jpeg will typically be drawn from the top down, oneline at a time. A progressive jpeg, on the other hand, will display over theentire image area, but in several passes - each one with more detail than thelast.
It's that last type of image you're probably seeing. And as you can probablysee, it's not something you control - whomever created the image elected toencode it this way.
The question of course is: why?
The surprising answer: bandwidth.
The question is if you're downloading an image over a low connection (oreven downloading a large image over a fairly fast connection), how soon willyou realize that the image isn't worth waiting for?
"It's all a matter of ... how much the image creatorwants you to see, and how quickly."Let's say the image is downloading and you've received 1/4 of the imagedata. For a standard jpeg, that means you'll see roughly the top quarter of theimage. For a progressive jpeg, that means you might see the entire image, butit'll be "out of focus".
For some images that standard format top quarter, in focus, will be enoughfor you to know what the rest of the image is going to be. For other imagesit's not. For some images that first progressive format "out of focus" image isenough. For other images it's not.
It's all a matter of how much you want to see, and how quickly. Or rather,how much the image creator wants you to see, and how quickly.
The good news is that a) the size of the same image encoded either standardand progressive isn't all that different, and b) the result when they bothcomplete downloading is the same.
And with internet download speeds increasing all the time, the actualdifference is rarely important - most images display before you even realizethat they're one or the other.
Posted on Jul 02, 2009
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Posted on Jan 02, 2017
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