This is one of the most useful filters in Photoshop, it can be used to correct several common lens distortion problem. Lens distortion ...
This is one of the most useful filters in Photoshop, it can be used to correct several common lens distortion problem.
Lens distortion
Many lenses, especially zooms on cheaper digital cameras, are liable to slightly distort the image, either by visually bowing out (barrel distortion) or by misalignment color channels to a small degree, which shows as fringing on edge detail. When opened, this filter displays the complete image, overlaid with an optional grid and commands on the right hand side.
Rotate
Before removing the distortion, ensure the image is perfectly straight. A small toolbox on the left contains Rotate Canvas. Simply click on the box and then draw a line over a plane that is meant to be straight (either horizontal or vertical) and release the mouse.
Remove Distortion
Move this simple slider to the right to correct the effects of barrel distortion, or to the left if the image has "pincushion" distortion. You only need to make a slight adjustment to make a difference. As the distortion is corrected, curved edged appear at the side of the frame. These need to be cropped out.
Chromatic Aberration
When a lens on a camera or a scanner does not focus all the color channels exactly, a colored fringe between opposing colors can sometimes be seen at sharp edges. Use the two sliders to correct the differences between red and its opposite color, cyan, or blue and yellow. Very little, adjustments are usually required.
Vignette
If a misplaced lens hood, or a poor-quality lens causes an image to vignette (darken at the corners), use Vignette to reduce it. Also use it to add a vignette for effect or, if very subtle, to draw the eye in toward the center of the picture.
Transform perspective
Though not technically a lens fault, as it is caused by the angle of the camera, you can change perspective on both the horizontal and vertical axis with the lens Correction Filter. This is useful for straightening buildings shot at odd angles. this filter is similar to Transform but is quicker to use.
Correcting facial distortions
Use the Lens Correction filter to correct portraits shot too close-up with wide-angle lens. The perspective controls can also be used to purposely distort the edges and the angle of a photograph, providing the main area of interest is at the center of the frame.
Vanishing Point
Use this new and clever filter to make changes within a selected are while keeping the perspective of the selection. this is useful for making addition to visual planes viewed at an angle. An area, known as the Editing Plane, is mapped out initially, and then the edge handles moved to extend the Plane. Any copying, pasting, or cloning done within this perimeter will stay in perspective.
Importing images into Vanishing Point
A selection from different photograph has to first be placed in Photoshop's clipboard(select Copy from the Edit menu, or press Ctrl/-C). It can then be pasted into the Editing Plane (Ctrl/Command V). It will then change to the correct perspective. However, it must be the same resolution and ideally have quite a flat perspective to begin with.
Lens distortion
Many lenses, especially zooms on cheaper digital cameras, are liable to slightly distort the image, either by visually bowing out (barrel distortion) or by misalignment color channels to a small degree, which shows as fringing on edge detail. When opened, this filter displays the complete image, overlaid with an optional grid and commands on the right hand side.
Rotate
Before removing the distortion, ensure the image is perfectly straight. A small toolbox on the left contains Rotate Canvas. Simply click on the box and then draw a line over a plane that is meant to be straight (either horizontal or vertical) and release the mouse.
Remove Distortion
Move this simple slider to the right to correct the effects of barrel distortion, or to the left if the image has "pincushion" distortion. You only need to make a slight adjustment to make a difference. As the distortion is corrected, curved edged appear at the side of the frame. These need to be cropped out.
Chromatic Aberration
When a lens on a camera or a scanner does not focus all the color channels exactly, a colored fringe between opposing colors can sometimes be seen at sharp edges. Use the two sliders to correct the differences between red and its opposite color, cyan, or blue and yellow. Very little, adjustments are usually required.
Vignette
If a misplaced lens hood, or a poor-quality lens causes an image to vignette (darken at the corners), use Vignette to reduce it. Also use it to add a vignette for effect or, if very subtle, to draw the eye in toward the center of the picture.
Transform perspective
Though not technically a lens fault, as it is caused by the angle of the camera, you can change perspective on both the horizontal and vertical axis with the lens Correction Filter. This is useful for straightening buildings shot at odd angles. this filter is similar to Transform but is quicker to use.
Correcting facial distortions
Use the Lens Correction filter to correct portraits shot too close-up with wide-angle lens. The perspective controls can also be used to purposely distort the edges and the angle of a photograph, providing the main area of interest is at the center of the frame.
Vanishing Point
Use this new and clever filter to make changes within a selected are while keeping the perspective of the selection. this is useful for making addition to visual planes viewed at an angle. An area, known as the Editing Plane, is mapped out initially, and then the edge handles moved to extend the Plane. Any copying, pasting, or cloning done within this perimeter will stay in perspective.
Importing images into Vanishing Point
A selection from different photograph has to first be placed in Photoshop's clipboard(select Copy from the Edit menu, or press Ctrl/-C). It can then be pasted into the Editing Plane (Ctrl/Command V). It will then change to the correct perspective. However, it must be the same resolution and ideally have quite a flat perspective to begin with.
