Jump to content

Sub-pixel shifts/rotations


Recommended Posts

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?

 

Link to comment
Share on other sites

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....

Link to comment
Share on other sites

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

Link to comment
Share on other sites

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.

 

Red ochre Plugin pack.............. Diabolical Drawings ................Real Paintings

 

PdnForumSig2.jpg

Link to comment
Share on other sites

....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 by Xarx
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...