How to transpose background image - html

Question

Is there a way to transpose a background image with CSS? (By "transpose" I mean that every pixel x,y in the source image ends up as pixel y,x in the background.)
Example
Source image:
Transposed image:

Answer 1

The result image can in fact be achieved after scaling it around Y axis with factor of -1 and then applying rotate transform of -90deg. Try this:
div.transposed {
-webkit-transform-origin:left top;
-webkit-transform:scaleY(-1) rotate3d(0,0,1,-90deg);
}
Demo
Note that we have to rotate -90deg instead of 90deg because we use scaleY before, it will turn the positive direction of Y axis from top-to-bottom (downwards) to bottom-to-top (upwards). In fact scaleY(-1) is equal to rotateX(180deg), in 3D, that means the positive direction of Z axis will be inverted (instead of outwards from screen, it will be inwards to the screen), hence the rotating angle should be -90deg instead of 90deg as we might think.
Please test the demo on webkit-based browsers.

Answer 2

If by "transpose" you mean this, it's similar with "rotate 270 deg and reflect vertically" or "rotate 90 deg and reflect horizontally".
There you can find full solution to "rotate background" problem: http://thewebthought.blogspot.com/2013/04/css-rotate-background-images.html
After rotating you can reflect image by transform:scaleY(-1) or transform:scaleX(-1).

Answer 3

If I understand your question you want to rotate the image 90 degrees. pixels along x become pixels along y. In CSS3 this is a transform.
#myParentElement
{
-webkit-transform: rotate(90deg) scaleX(-1) /* updated to add flip */;
-ms-transform: rotate(90deg) scaleX(-1);
transform: rotate(90deg) scaleX(-1);
filter: FlipH;
-ms-filter: "FlipH";
}
to do this to a background image you would need to apply the CSS transform to the parent of the element that has the background image. Apply another transform to the element so that its contents are not transformed.
#myParentElement
{
-webkit-transform: rotate(90deg) scaleX(-1);
-ms-transform: rotate(90deg) scaleX(-1);
transform: rotate(90deg) scaleX(-1);
filter: FlipH;
-ms-filter: "FlipH";
}
#myElement
{
-webkit-transform: rotate(-90deg) scaleX(-1);
-ms-transform: rotate(-90deg) scaleX(-1);
transform: rotate(-90deg);
filter: FlipH;
-ms-filter: "FlipH";
}

Answer 4

use this code to rotate the background 90 degrees on an element without affecting the element itself:
#myelement {
height: 164px;
overflow: hidden;
position: relative;
width: 79px;
}
#myelement:before {
background: url("http://i.stack.imgur.com/gMRiV.png") no-repeat;
content: "";
height: 79px;
left: -42px;
position: absolute;
top: 42px;
-webkit-transform: rotate(90deg);
-moz-transform: rotate(90deg);
-ms-transform: rotate(90deg);
-o-transform: rotate(90deg);
transform: rotate(90deg);
width: 164px;
z-index: -1;
}
and the html code:
<div id="myelement">test</div>
example:
http://jsfiddle.net/fs4Dz/