I have a background image which is responsive. It adapts to the container with the background-size: 100% method which keeps the aspect ratio. However, for older browsers like Firefox 18 and below and all versions of internet explorer I get a bad image when scaled (jagged or blurry). I tried the css bicubic interpolation (internet explorer) and "image-rendering" (firefox) fix yet no effect what can be observed.
My question is: is there a jquery or javascript way that does the same job while preserving the quality? Like a browser independent scaling method. Googled but found nothing.
I know this is not ideal in terms of speed and I should instead do the resizing in my image editing software but this is not an option in my scenario.
Would be happy to hear about your answers,
Sincerely,
Michael
The only good solution I found to provide the best possible quality is by using a css responsive method.
For latest chrome & safari you have the new HTML attribute SRCSET.
For olders browsers, you can use your images as a div background and change it dynamically with CSS only.
For very old browsers, the only way is to grab images with different sizes using JS...
Related
Having a blurred image is one of the main aesthetic features on my website. So far I am using CSS3 filter blur() to create the blur, but I know this is not supported in neither Firefox nor Internet Explorer. I was wondering is there an alternative, maybe JavaScript/jQuery, which will help me create the blurred effect I am looking for?
There are plenty of JS libraries that blur images.
BlurJS
VagueJS
StackBlur Algorhythm
Anyway, if you're using a static blurred image (i.e., no need to unblur/blur it again), I'd say you should go with a normal bitmap image. That might help to avoid unnecessary CPU load on the browser and compatibility issues.
See if blur.js, a jQuery plugin, does the trick for you. Essentially, what it does is move your image to a <canvas>, and does the blurring effects there. See a more comprehensive article on the topic: Effects for the Web!.
I want to use transition effect on hover for IE 8 like in this example:
http://jsfiddle.net/evcL2/10/
According to this site (is working only on ie) that is possible (use trasntion option and fade effect) but I am not able to use it. Can someone help me a little bit with that script, for me is simportant to have that transition on hover only for background color.
Thank you.
IE8 doesn't support CSS3 transitions. You'll have to fake it using JavaScript tweens, or settle for IE9 support. IE8 users don't deserve nice looking websites anyway :-)
But if you're in the awkward position of being tasked with creating IE compatible stuff, take a look at this MSDN introduction to Filters and Transitions. It appears that even the IE specific transition filters require JavaScript to work, so you might as well go with the proper JavaScript solution of using jQuery.animate. With a small plugin it can animate colors. Here's an example on JSFiddle.
For some reason the website you suggested doesn't render properly in my browser. However, I think you may be attacking the problem wrongly. I would use jQuery's $.animate() function for this, as it is very cross browser and can animate gradual changes in many css properties.
I was wondering if there was any jQuery library that will allow us to change the perspective of an image.
I know that modern browsers already support vendor specific rotate() in CSS but it doesn't quite give the desired result. Most of them just vary the width of the image but doesn't shrink the height of one side and increase the height of one side to produce the effect that you are viewing the image from another angle.
Any more details that you may need, please tell me. Thanks!
EDIT
I already tried transforms but they don't increase the height of the side that is moving towards you and decrease the one that is moving away from you. And I don't do full rotations, i just tilt the image a few degrees so the change in height has to really be there
Have a look at script3D.js
http://minimal.be/lab/Sprite3D/
could be usefull for 3D css animations.
CSS3 has 2D-transforms and 3D-transforms. While the first is well supported (by all browsers, not by all used versions [1]) the second is currently only supported by mozilla and webkit [2]. Both features mostly need vendor-prefixes.
And of course you can animate them with jQuery, if you want to.
On a site of mine, my client is reporting that images that are reduced in size by code (i.e. specified a width/height) are appearing jagged and pixellated. I have asked her what browser she uses and inevitably it's Internet Explorer.
Is there a way to optimise images in IE or do I need to manually resize the images on photoshop before I put them on the site?
The images in question are resized from 220x220 to 80x80 and I have javascript that expands them to 220x220 upon clicking.
Resizing down or up in a browser can look terrible. It varies from browser to browser, but apparently IE is the worst.
It's best to either write a server side script to create thumbnails, or to manually do it yourself if quality of the image is important. It also saves bandwidth as you don't need to load the big image and only display 1/10th of the pixels.
You should avoid using width and height for resizing. It'll cause a longer loading time (on slow connections and big images).
A better idea is making thumbnails (with Photoshop for example) and use the "Web save" option to reduce the size even more.
http://acidmartin.wordpress.com/2009/01/05/better-image-scaling-and-resampling-in-internet-explorer/
Bicubic image resampling is turned off by default in IE. You can use this to turn it on in your reset stylesheet:
img
{
-ms-interpolation-mode: bicubic;
}
use timthumb, it will create thumbnails for you, you just need to link to the script, and specify the size of the thumbnail and that's it. http://www.darrenhoyt.com/2008/04/02/timthumb-php-script-released/
i'm using it on one of my sites -> http://iv-designs.org/
you can see the images are clean and not pixelated.
Assuming your images are JPEGs, the easiest option is to use IE7's bicubic image resizing feature, which you can turn on using CSS:
img { -ms-interpolation-mode: bicubic; }
Be aware that it's got performance implications (using it a lot will slow the browser down). It also has no effect in IE6, and is no longer needed in IE8.
Another way (which does work in IE6) is to use Ethan Marcotte's wonderful Fluid Images script, which uses some damn clever CSS filters to fix the problem in IE6 and 7. My own variation on the theme fixes the right click problem, but requires jQuery.
I am dynamically sizing a transparent .gif on my web page using JavaScript. The original image size is around 200x200 pixels and it’s typically resized to between 600x600 and 800x800. In IE8 and FF3, the resized image results in a nice looking gradient where the colors appear to be stretched. However, in older browsers such as IE7 and FF2, the resized image does not show a gradient, but just blocks of the same color. Obviously, there is something built into the browsers that causes this however I am curious if there is a way around this without having to change my original image.
There isn't. Older browsers just take the pixels in the image, and multiply them according to the new size you gave the image.
Newer browsers seem to have more advanced image rendering with anti-aliasing and such, but older browsers just aren't capable of that. If you want the image to look good in all sizes, take the biggest you can and then let it shrink if needed. Upsizing a small image will look ugly, expecially in the old browsers, and there's nothing you can do.
If you are just using it as a gradient, why not just whip up a new one in Photoshop/Gimp that's at the correct resolution for what you need. It will be far simpler in the long run then trying to get an up-scaled image to display properly in all browsers.
It looks like IE7 supports bicubic if you add "-ms-interpolation-mode:bicubic;" to your img css style. I haven't tried it myself, and wonder if it'd work on gifs or if it'd only work on true color images.