Creating HDR 21It is important to realize that the image will be aligned based on the current view. As we will see later
with camera roll, pitch or yaw, the alignment could be correct in one corner, but incorrect in other
corner of the image. If the Auto-Align feature cannot align the images correctly, just move the view
where the image may be clearer.
Basic aligning
To align images you need to change the Horizontal and Vertical Offset. You can drag the dials, type a
value or use Arrow keys.
Holding Control + Arrow keys will move the offset in larger increments.
The "0" buttons will reset the dials (and the images) into 0 position.
Note: If you have to shift images too much you may start to see some stretching effect on the edges of
the preview window.
Angle Aligning
When the image is aligned in one view but misaligned in different part, we have camera angle
problem.
For a simple camera roll we can adjust the Roll Angle. You can do this with arrow keys Left and Right
while holding SHIFT.
The image is rotated against a center of rotation marked by a cross.
Initially this is placed at the center of image, marked by C:0,0
You can reset a new center of rotation by moving the view and pressing Set button.
It is nearly impossible to visually determine where a center of the rotation could be, so the center of
image is a good start.
Add/Remove Vector
This feature is to assist with location of a center of rotation. If you suspect there is a camera roll and it
has center rotation different than the center of image you may align the image at one place and then
press +V.
This will add a vector of the shift and a perpendicular infinite red line.