Ausrich b Mittelwert

This field is valid only when [Direction] is selected for [Mode]. In the direction image, directions of the gradient distribution are represented with grayscale values from 0 to 255. This item is used to specify which gradient direction is assigned to which grayscale value. For example, when [Upward] is specified, the gradient direction with waning brightness toward the top of the image is assigned to 128, which is the [Dir. at Middle Value], and plotted at the center of the histogram. Select the direction that best represents the characteristics of the range to be measured. For your reference, the result of the histogram chart when each option is selected is described for the image shown below. Since majority of the gradient direction in the area enclosed by the red rectangle is right-to-left (leftward), the peak is plotted at the center of the histogram chart when [Leftward] is selected.

[Oben ]
The gradient direction with waning brightness toward the top of the image (upward) is plotted at the grayscale value of 128. The grayscale value of 64 represents the rightward gradients, and the grayscale value of 192 represnets the leftward gradients. The grayscale values 0 and 255 represent downward gradients.
Example of a grayscale gradient image and histogram by the direction at middle value in the graph (upward)
[Links ]
The gradient direction with waning brightness toward the left of the image (lefward) is plotted at the grayscale value of 128. The grayscale value of 64 represents the upward gradients, and the grayscale value of 192 represents the downward gradients. The grayscale values 0 and 255 represent rightward gradients.
Example of a grayscale gradient image and histogram by the direction at middle value (leftward)
[Unten ]
The gradient direction with waning brightness toward the down of the image (downward) is plotted at the grayscale value of 128. The grayscale value of 64 represents the leftward gradients, and the grayscale value of 192 represents the rightward gradients. The grayscale values 0 and 255 represent upward gradients.
Example of a grayscale gradient image and histogram by the direction at middle value (downward)
[Rechts ]
The gradient direction with waning brightness toward the right of the image (rightward) is plotted at the grayscale value of 128. The grayscale value of 64 represents the downward gradients, and the grayscale value of 192 represents the upward gradients. The grayscale values 0 and 255 represent leftward gradients.
Example of a grayscale gradient image and histogram by the direction at middle value in the graph (upward)