Tham khảo tài liệu 'photoshop cs quickstep - part 4', công nghệ thông tin, đồ họa - thiết kế - flash phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 10 98765 321 Dragging left on any of the sliders that can be dragged left produces the opposite effect as from what is stated here. Drag the Radius slider to the right to lighten more pixels that neighbor one another. The result is similar to adding contrast to the lightened shadow areas. 4. Under Highlights Drag the Amount slider to the right to recover areas that might become blown out from too excessive of an Amount value under Shadows. Drag the Tonal Width slider to the right to affect more highlight areas. Drag the Radius slider to the right to increase contrast in the highlight areas. 5. Under Adjustments Drag the Color Correction slider left to decrease saturation drag right to add saturation. Increase midtone contrast by dragging the Midtone Contrast slider to the right dragging left decreases contrast in the midtones. 6. To save a file with these settings useful if you have lots of photographs that need the same correction click Save name your file and click Save again. To apply the saved file with a new image loaded click Load and then locate the file you saved. 88 Photoshop CS4 Quicksteps Adjusting Tone and Color in Your Photographs Concentrate on Color Not Tones Getting a poorly exposed image to a polished state involves working with color as well as tone. The excursions in the sections that follow show how the other Image I Adjustments commands address working with color correcting it and occasionally distorting it for trick photography effects. Use Color Balance Color Balance CTRL CMD B works in three tonal ranges just like Curves and Levels moving these ranges colors independently shown earlier to color opposites. Additionally the Color Balance dialog box has a Preserve Luminosity check box that you ll want to leave checked most of the time. Unchecked when you make color balance changes tonal changes will occur because color and brightness are linked digital image properties. To cool down the midtones in a photo click the Midtones button and then .