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Tham khảo tài liệu 'photoshop cs quickstep - part 3', công nghệ thông tin, đồ họa - thiết kế - flash phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 10 987654 21 Image adjustment tabs By default you can process images using the Basic adjustment tab sliders and settings. There are additional adjustment settings on the other tabs described in the following section. Histogram Here you can see how many pixels are at various brightness levels in the selected image the red green and blue channels are overlaid with a white composite channel. You can adjust the distribution of pixels at different brightness levels using the Tone Curve tab in the adjustment tabs section. See Chapter 4 for details on working with Levels Curves and other Photoshop adjustments for correcting and enhancing the shadows midtones and highlights in your photos. SAVE OR RESET YOUR PROCESSING WORK Before you get too far into Camera Raw image processing it s good to understand what the buttons along the bottom of the interface do and mean Save Image Click to save an image with or without any adjustments. The Save Options dialog box opens. If you want to save a copy of a camera raw image choose Digital Negative DNG from the Format drop-down list. You can also save to TIFF JPEG and Photoshop s native file format. To save with the most future editing options choose Digital Negative Or PSD saving a JPEG as a JPEG only allows further degradation of the file because JPEG is a lossy file format. Open Image Click to open the file as a Smart Object in Photoshop. The image will need to be saved in Photoshop using File Save or File Save As Smart Objects do not have a file format and they are not saved to hard disk. Cancel Click to return to Bridge. Alternatively press ALT OPT and the Cancel button becomes the Reset button which when clicked discards all your editing of the image in the Camera Raw Editor. Done Click to apply the edits. You re returned to Bridge. Note that a small icon appears to the upper right of an edited image. Because edits are nondestructive in the Camera Raw Editor you can elect to remove all edits at any time within Bridge. Here you .
