User manual

Functional Descriptions 371

Original Flip H

Filter

Select the desired filter, to be applied to the image or cine file in the active Preview/Playback Panel,

from the Filter pull-down selection list. The Phantom Camera Control application provides the

following image filtering algorithms:

None

Used to display the images as they were originally recorded, prior to applying any of the other

filtering techniques to the images.

Smooth Gauss 3x3 or 5x5

Used to blur or “smooth” the images based on a 3-by-3-, or 5-by-5-pixel Gaussian filter.

Sharpen

Used to emphasize the edges within an image. The result is that the image appears to have

increased sharpness.

Edge Hipass 3x3 or 5x5

Used to enhance or isolate 3-by-3-, or 5-by-5-pixel transition areas, or "edges," in an image by

enhancing the high-frequency detail.

Applied filter: None Edge Hipass 3x3 Edge Hipass 5x5

Edge Laplacian 3x3 of 5x5

The 5x5 Laplacian used is a convoluted mask to approximate the second derivative, unlike the

Sobel method which approximates the gradient. And instead of two 3x3 Sobel masks, one for

the x and y directions, Laplace uses one 5x5 mask for the 2nd derivative in both the x and y

directions. However, because these masks are approximating a second derivative

measurement on the image, they are very sensitive to noise.