The images in computer generally can be divided into two major categories: vector graphics and bitmap. Trough real-time tracing the existing artwork, Illustrator allows users to convert the picture to vector paths or real-time color object. It is easy to input or output more beautiful images in the computer using of the digital camera or scanner. The saved images can be opened in Photoshop and the detail intensity of these images can be adjusted by adjusting brightness and enhancing the contrast. Then, this file can be exported to psd format, and can be imported into illustrator. At last, through selecting the different real-time tracing to extend the image, it can be edited so as to get different effect objects. Precambrian Field Camp at the University of Minnesota Duluth - Teaching Skills Applicable to Mapping Glaciated Terranes of the Canadian Shield Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable. Source.