Softens or blurs the image by applying a low pass filter.
Opens a dialog for defining solarization. Solarization refers to an effect that looks like what can happen when there is too much light during photo development. The colors become partly inverted.
All pixels are set to their gray values, and then the green and blue color channels are reduced by the amount you specify. The red color channel is not changed.
定义老化的强度 (用百分比表示)。老化度为 0% 时，将显示所有像素的灰度值。老化度为 100% 时，仅保留红色通道。
Opens a dialog to determine the number of poster colors. This effect is based on the reduction of the number of colors. It makes photos look like paintings.
Converts an image to a pop-art format.
Displays the image as a charcoal sketch. The contours of the image are drawn in black, and the original colors are suppressed.
Displays a dialog for creating reliefs. You can choose the position of the imaginary light source that determines the type of shadow created, and how the graphic image looks in relief.
Joins small groups of pixels into rectangular areas of the same color. The larger the individual rectangles are, the fewer details the graphic image has.