TAILIEUCHUNG - Photoshop Lab Color

LAB has a reputation for enormous power, yet virtually all reference materials that advocate its use illustrate its capabilities with a single class of image. This chapter introduces the basic LAB correction method and explains why it is so extraordinarily effective—if you happen to have a picture of a in Death Valley, land of desolation and summertime heat in the high 120s, a narrow canyon holds several lessons about color, | LAB Color DAN MARGULIS Photoshop Es The Canyon Conundrum A and Other Adventures in the 1 Most Powerful Colorspace w A v MV - -. - A . ík- -s -J- 1 The Canyon Conundrum LAB has a reputation for enormous power yet virtually all reference materials that advocate its use illustrate its capabilities with a single class of image. This chapter introduces the basic LAB correction method and explains why it is so extraordinarily effective if you happen to have a picture of a canyon. eep in Death Valley land of desolation and summertime heat j------in the high 120s a narrow canyon holds several lessons I------ - about color photography human perception and a power- ful digital imaging tool. Parts of the clayish soil contain mineral deposits that create striking color variations especially when the light hits just right in the late afternoon. The effect allegedly reminds some people of a painter mixing up the tools of his trade. So it s called Artist s Palette a considerable stretch. These dull tints have about as much to do with those found on the palettes of Renoir or Rembrandt as this book does with animal husbandry. But nothing seems great or small except by comparison. It s such a shock to encounter green or magenta dirt that it seems absolutely blazing next to the monotony of the surroundings. People stand and stare at Artist s Palette for hours seeing subtleties that cameras can t record and imagining brilliant colors that cameras don t think are there. We can leave aside the philosophical question of whether the reality is these dull colors that the camera saw in Figure or the comparatively bright ones conjured up by the infinitely creative human visual system. The fact is if this picture is a promotional shot or even something for a nature publication the original isn t going to fly. Anybody would prefer Figure B which was created in approximately 30 seconds in LAB. When I first wrote about LAB in a 1996 column I used a canyon shot Figure This Death .

• Đồ họa - Thiết kế - Flash
• LAB
• Vary the Recipe
• The Center Point
• Graphic design as a discipline
• branding
• Technology
• Thực hành LAB
• Tài liệu thực hành LAB
• Tài liệu hướng dẫn thực hành LAB
• Hướng dẫn thực hành LAB MCSA 2008
• Thực hành LAB MCSA 2008
• LAB MCSA 2008
• Hướng dẫn thực hành LAB
• Thực hành LAB MCSA 2008 VPN Site to Site
• Mô hình đấu nối phòng LAB
• Đấu nối phòng LAB
• Cách đấu nối phòng LAB
• Hướng dẫn đấu nối phòng LAB
• Các bước đấu nối phòng LAB
• Quy trình đấu nối phòng LAB
• Cách sử dụng ORIGIN lAB
• Tài liệu ORIGIN LAB
• Phần mềm vẽ đồ thị ORIGIN LAB
• Phần mềm ORIGIN LAB
• Giới thiệu phần mềm ORIGIN LAB
• Bài giảng ORIGIN LAB
• Thực hành LAB MCSA 2008 Domain
• Cài Domain Controller trên máy server 1
• Cấu hình giám sát
• Tài liệu hướng dẫn thực hành LAB MCSA
• Hướng dẫn thực hành LAB MCSA 2008 NAT
• Thực hành LAB MCSA 2008 NAT
• Thiết lập card mạng
• Hướng dẫn thực hành LAB MCSA 2008 Routing
• Xây dựng hệ thống Routing
• Hướng dẫn thực hành LAB VPN Client to Site
• Cài đặt Routing and Remote Access
• kỹ năng internet
• bài giảng lab
• công cụ lab
• tài liệu về lab
• thực hành lan
• Lab CCNA
• tài liệu Lab CCNA
• tài liệu quản trị mạng
• hướng dẫn Lab CCNA
• chuyên ngành quản trị mạng
• Thực hành LAB MCSA 2008 Disk Quota
• Cấu hình Disk Quota
• Cấu hình Disk Quota cho 1 ổ đĩa
• Cấu hình Home Folder
• Cấu hình User Profile
• Cấu hình Organization Unit
• Cấu hình Delegate Control
• Cấu hình các Group Policy
• Quảng trị mạng
• Cấu hình các Security Templates
• Cấu hình Distributed File System
• Kiểm tra Distributed File System
• Group Policy Management
• Cấu hình Group Policy Management
• Local User&Group
• Tạo local user và group trên máy server 1