Photoshop Image Menu Bar Tutorial

　　The Image menu

The commands in the Image menu mainly adjust the picture. Including the size of the picture, color, light and shade relations and color saturation, and so on, "image" menu is our most commonly used in the actual operation of a menu, we only have the main command inside the full grasp, in order to better use Photoshop.

One:"mode" command

The mode command contains a number of subcommand commands, as shown in the following figure. The commands are explained in detail in the "Concept section" and are simply introduced here.

　　1. Bitmap Color mode:

Converting an image to bitmap mode reduces the image to two colors, greatly simplifying the color information in the image and reducing the file size.

When you convert a color image to bitmap mode, you first convert it to grayscale mode. This deletes the hue and saturation information in the pixel and retains only the brightness values. However, because only a few editing options are available for bitmap-mode images, it is usually best to edit the image in grayscale mode before converting it to bitmap mode.

　　Note: In bitmap mode, each channel of the image contains 1 bits. You must first convert a 16-or 32-bit-channel image to 8-bit grayscale mode before converting it to bitmap mode.

⑴. If the image is in color mode, choose Image > Mode > Grayscale. Then, choose Image > Mode > Bitmap.

⑵. For output, enter a value for the output resolution of the bitmap-mode image and select the unit of measurement. By default, the current image resolution is both an input and an output resolution.

⑶. Choose one of the following bitmap conversion methods from the Use pop-up menu:

Classification:

• PS Getting Started Tutorial