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Photoshop cs5 by steve Johnson part 57

dấu ấn kỹ thuật số được thiết kế để bảo vệ tài sản trí tuệ của bạn. Khi bạn nhúng một hình mờ kỹ thuật số, nó thực sự chèn các thông tin watermark như tiếng ồn có thể nhìn thấy thành hình ảnh. Điều này có nghĩa rằng ai đó có thể sao chép hình ảnh của bạn, quét nó, và watermark vẫn là một phần của hình ảnh. | Click the Select menu and then click Load Selection. Click the Channel list arrow select the new channel and leave the other options at their default values. Q Click OK. Click the Filter menu and then click Filter Gallery. Click any of the available filters and then adjust the options until you are satisfied with the result. Q Click OK. The gradient mask black to white creates a ramped percentage selection. The white area of the mask is fully selected and the black area is fully masked. As the mask moved to black the image became less and less selected. When the filter was applied it lost strength from left to right matching the shades of gray in the mask . Chapter 14 Manipulating Images with Filters 353 Protecting Images with Watermarks Digital watermarks are designed to protect your intellectual property. When you embed a digital watermark it actually inserts the watermark information as visible noise into the image. This means that someone can copy your image scan it and the watermark is still part of the image. To embed a digital watermark you must first register with Digimarc Corporation which maintains a database of artists designers and photographers along with their contact information. You can then embed the Digimarc ID in your images along with information such as the copyright year or a restricted-use identifier. Protect Images with Watermarks Open the image you want to watermark. IMPORTANT The Embed Watermark filter won t work on an image that has been previously watermarked. If you re working with a layered image you should flatten the image before watermarking it otherwise the watermark will affect the active layer only. Click the Filter menu point to Digimarc and then click Embed Watermark. If you re using the watermark for the first time click Personalize. Get a Digimarc ID by clicking Info to launch your Web browser and visit the Digimarc Web site at www.digimarc.com. Enter a Digimarc ID and any other necessary information and then click OK. The .