Clicking "Effect / Color Reduction (256)" of the menu, you can make a new image with only 256 colors.
Clicking "Effect / Color Reduction..." of the menu, a tool panel is displayed. You can specify the method and parameters of reduction with it. There are several methods to reduce images; usually, "Dither + MCA(Median Cut Algorithm)" could make more beautiful images. Reduction by "Fixed Palette" uses the palette which is common to Windows and Macintosh. You can also cut off bits of each color value to 4, 2, or 1.
The new image is displayed on newly opened window.
If you want to make a monochrome image, see "Brightness / Monochrome".
If you click "Effect / Brightness/Monochrome..." of the menu a panel is displayed. With three sliders on the panel you can set brightness, contrast, or gamma of the image newly created.
If you click "Brightness" button a new image is displayed, which is changed its brightness/contrast.
If you click "Monochrome" button, a monochrome image is newly displayed. Method and the number of steps are set by popup lists. The brightness/contrast is also controlled by the sliders on the panel. If you want to cut off pixels into 4, 2, or 1 bit without dithering, use menu of "Color Reduction".
This operation can not be applied to eps images.
If you click "Effect / Enhance Color Tone..." of the menu a panel is displayed, on which you can set the degree of enhancement. Large value of "Saturation" makes images brilliant. You can also control hue of images.
If you click "Doit" button an enhanced image is newly displayed.
This operation can not be applied to eps images.
If you click "Effect / Enhance & Dull..." of the menu a panel is displayed. You can set how to emboss with the upper slider. If its value is positive, black areas will looks hollow, and if the value is negative, white areas will looks hollow. With "Color fot Emboss, Contour" slider, you can add color to the image. If you click "Emboss" button a new image is newly displayed.
This operation can not be applied to eps images.
If you click "Effect / Enhance & Dull..." of the menu a panel is displayed. You can set degree of sensitivity with the upper slider. With larger value, more lines could be extracted. With "Color fot Emboss, Contour" slider, you can add color to the image. If you click "Contour" button a new image is newly displayed.
This operation can not be applied to eps images.
Applying "posterize" described below after this operation, you can get interesting effect.
If you click "Effect / Replace Colors..." of the menu a panel is displayed, on which you can set replaced colors with the color-wells. The degree of exactness in comparison of colors is set by the slider.
If an area is selected by dragging, this operation will be applied to only inside or outside of the area.
If you click "Doit" button a new image is newly displayed.
This operation can not be applied to eps images.
If you click "Effect / Noise/Mosaic..." of the menu a panel is displayed. With "Frequency" slider, you can set the ratio of pixels that is modified. And, with "Magnitude" slider, you can set the magnitude of noise added. If an area is selected by dragging, this operation will be applied to only inside of the area.
If you click "Noise" button a new image is newly displayed.
This operation can not be applied to eps images.
If you click "Effect / Noise/Mosaic..." of the menu a panel is displayed. With "Granularity" slider, you can set the size of blocks which form mosaic. If you click "Mosaic" button a new image is newly displayed.
This operation can not be applied to eps images.
If you click "Effect / Make Soft Frame..." of the menu a panel is displayed. With "Shape" button, you can select the shape of the frame added. With "Width" slider, you can set the width of the frame. And, with the color-well, you can set the color of the frame.
If you click "Doit" button a new image is newly displayed.
This operation can not be applied to eps images.
If you click "Effect / Posterize..." of the menu a panel is displayed. With "Degree" slider, you can select fineness of areas. "Color Control" slider specifies fineness in aspect of difference of colors.
This operation can not be applied to eps images.