Tôi thường muốn thực hiện điều chỉnh nhỏ cho một phạm vi cụ thể của nhạc trong một phần của một hình ảnh - thường là để tăng sự tương phản giữa các tông, nhưng tôi không muốn thay đổi hầu hết các tông liền kề. Điều này có thể được thực hiện dễ dàng bằng cách "khóa" các tông liền kề đầu tiên, trước khi thực hiện điều chỉnh đường cong. Tạo một đường cong mới | IMAGES FOR THE WEB 1 Duplicate your image file this preserves the layers and color space of the image file . Select Image Duplicate Image. In the Duplicate Image dialog provide a useful name and check the Duplicate Merged Layers Only option. 2 If necessary convert the E-mail image to sRGB using Edit Convert to Profile. See Convert to sRGB on page 107. 3 Resize your image select Image Image Size. In the image size dialog set the resolution to 72 pixels per inch and set the Pixel Dimensions to your specific desired pixel size by changing the Width or Height. For a typical E-mail image set the longest dimension to 500-800 pixels. 4 Sharpen the image by selecting Filter Sharpen Smart Sharpen. Set the Amount to 50 the Radius to 1 pixel Remove to Lens Blur and check the More Accurate option. Use a Radius of 1 pixel for web images. Sharpen smaller image files less - too much sharpening can make small files appear blocky. 5 Save the Image to the Web by Selecting File Save for Web. In the Save for Web dialog set the File Settings set the file format to JPEG the quality to High turn off Progressive and turn on ICC Profile. The File Information will display the file format and file size a file size under 100 K is good for E-mail files. 189 THE FOCAL EASY GUIDE TO PHOTOSHOP CS2 Press the Save button and Photoshop will provide you a Save As dialog to save the file. 6 It is possible to resize an image in the Save for Web dialog directly rather than doing this using the Image Size dialog in step 3 above. Select the Image Size tab in the Save for Web dialog and provide size dimensions as you would using the Image Size dialog. I prefer to resize my E-mail images first then sharpen and then save the Jpeg files. 190 IMAGES FOR THE WEB Preparing Images for the Web Images for Web pages are very similar to images for E-mail. But generally images for the Web need to be saved to very specific dimensions. 1 Duplicate your image file this preserves the layers and color space of the image .
