A Clipping Path is a closed vector path or shape
used to cut out a 2D image. All that is inside the image will be included after
the clipping path is applied, whereas the areas that are outside the image will
be cropped / cut automatically. The background can later be changed as per your
wish. Applying the clipping path, the image gets a hard or soft edge, depending
on the way you want your image to be.
The inside of the image is defined by its
direction. The direction of the image can be reversed. Reversing the direction
reverses what is considered inside or outside. An inclusive path is one where what is inside the
path corresponds to what will be preserved. An exclusive path includes what is
outside the path. A clock-wise path, by convention, that is non-self-intersecting
is considered to be an inclusive path.
How to create a Clipping Path automatically?
Photoshop has a
Clipping Path Dialogue Box where we have the option of Detect Edges. The Detect
Edges option hides the lightest or darkest areas of a graphic, so that it works
best when the subject is set against a solid white or black background.
Clipping Path Options
1.
Threshold:- Specifies the darkest pixel
value that will define the resulting clipping path. By increasing the value
makes pixels more transparent by extending the range of lightness values added
to the hidden area
2.
Tolerance:- It shows us how similar a
pixel’s lightness value can be. By increasing the value of tolerance, you can
remove the unwanted bumps caused by stray pixels that are darker than the
Threshold Value. The darkness should be close to the lightness of the Threshold
Value. Higher Tolerance values usually create a smoother, looser clipping path,
by increasing the range of values near the Tolerance value within which stray
darker pixels are included. By decreasing the Tolerance Value, You stiffen the
clipping path around smaller variations in value.
3.
Inset Frame:- It helps to shrink the
resulting Clipping Path Relative to the clipping path defined by the Threshold
and Tolerance Value. The Insert Frame Value does not take the lightness or
darkness of the image into account. Instead it only uniformly shrinks the shape
of the Clipping Path. Adjusting the Inset Frame value slightly may help hide
stray pixels that could not be eliminated by using the Threshold and Tolerance
values.
4.
Invert: - It helps switching the visible
and hidden areas, by starting the clipping path with the darkest tones.
5.
Include inside Edges:- It helps in making those areas
transparent that exist inside the original clipping path. But this will happen
only if the lightness value lies within the Threshold and Tolerance Level. By
default, the Clipping Path command makes only the outer areas transparent, so
use Include Inside Edges to correctly represent “holes” in a graphic. This
option works best when the brightness levels of the areas you want to make
transparent do not match any areas that needs to be visible.
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