tailieunhanh - The Photoshop Book for Digital Photographers- P6

The Photoshop Book for Digital Photographers- P6:This new book, from Photoshop User magazine editor and bestselling author Scott Kelby, starts at the moment your digital camera photos come into Photoshop, and he shows you the Photoshop pros techniques for managing, correcting, retouching and outputting your photos to knock your client's socks off, and turn you into a Photoshop production wizard. | The Photoshop Book tor Digital Photographers Converting to 8-bit mode Downsampling in Photoshop ro 8 bits IS a no-brainer just go under the Image menu under Mode and choose 8 Bits Channel. Now you can edit the photo using all of Photoshop s tools and filters. Image Mode Adjustments Duplicate. image Sire . Canvas Size. Rotate Canvas Histogram. Trap Bitmap Grayscale RGB color CMYK Color Lab Color MijUo turn 6 MX Channel r 16 Bits Assign Profile. Convert to Profile. 136 Chapter 4 Color Correction tor Photographers The Photoshop Book for Digital Photographers If you ve worked with 16-bit images you probably already know the Dodge and Burn tools aren t available to you. With 8-bit images we d get around that by creating an Overlay Adjustment layer and then using the Brush tool to dodge and burn but in 16-bit you can t use layers or the Brush tool. Luckily Russell Brown Adobe s own Graphics Evangelist came up with this great workaround that lets you dodge and burn thanks to the fact that for some reason. Photoshop s History brush does work on 16-bt photos. Here s how he does it Dodging and Burning 16-Bit Photos JQO S ÿ 1 .7M RCD Step One Open a 16-bit photo in Photoshop. The background in the photo shown at left looks properly exposed but the subject in the foreground could use a little brightening up dodging . But as I mentioned in the introduction to this technique the Dodge and Burn tools are not available to US in 16-bit mode and neither are layers or the Brush tool . M Step Two Press Command-L PC Control-L to bring up the Levels dialog we re going to use Levels for this broad tonal adjustment but you could just as easily use Curves it s your choice . Drag the high light and midtone Input Levels sliders to the left to brighten the overall image. Don t be afraid to really brighten things up because you ll be able to back things off in a later step but it s harder to make the brightening more intense later. When it looks good and .

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