Sub-pixel shifts/rotations

[Xarx]

I have several layers in an image, and I need to align them precisely. The ordinary layer shift ("move pixels") by multiples of pixels is not sufficient.

Is there a tool or plugin for PDN that allows sub-pixel shifts (i.e. moves by fractions of pixel)? And rotations by very small angles?

 

[Ego Eram Reputo]

Subpixels: not to my knowledge. Individual pixel precision is the only thing we can offer.

Rotations: yes there is one I recall. Can't remember the name....

[Ego Eram Reputo]

....Rotation Bilinear. Also have a look at Rotate Zoom+. Find these in the Plugin Index (link in my sig).

[Red ochre]

For lateral sub-pixel movement you could try this:

 

1. Duplicate layer.

2. move top layer 1 pixel with the keyboard arrow keys.

3. Adjust the layer transparency of the top layer.

4. merge top layer down onto lower layer.

[Xarx]

....Rotation Bilinear. Also have a look at Rotate Zoom+. Find these in the Plugin Index (link in my sig).

Rotation Bilinear works exactly like I need, unfortunately the center of rotation cannot be outside the canvas :-(.

Rotate Zoom+ cannot even set the center of rotation.

 

But exactly something like this I need also for shifts (moves). ;-)

 

For lateral sub-pixel movement you could try this:

 

1. Duplicate layer.

2. move top layer 1 pixel with the keyboard arrow keys.

3. Adjust the layer transparency of the top layer.

4. merge top layer down onto lower layer.

 

There are many ways how to simulate the sub-pixel shifts, for instance:

 

1. Enlarge the image, say 4x

2. Do normal pixel move

3. Return the image its original dimensions again

 

If you know exactly the amount of the pixel move you need, you can use these workarounds, but they are unsuitable for experimenting or "fine tuning".

Edited February 5, 2013 by Xarx

[SAND33P]

I will be told off for this, but i can't have been the only one to click into this thread thinking the title is uber cool?

[Xarx]

Wizardry, is it? ;-)