tailieunhanh - Tài liệu Photoshop cs5 by Dayley part 27

Nhiều máy ảnh cao cấp kỹ thuật số hỗ trợ một định dạng tập tin mà thường được gọi là máy ảnh thô. Nếu máy ảnh của bạn hỗ trợ định dạng này và bạn nghiêm túc về việc tạo ra những bức ảnh tuyệt vời, bạn có thể muốn được chụp trong máy ảnh thô. Là máy ảnh nguyên thực sự tất cả những gì? | Part II Working with Camera Raw Images IN THIS PART Chapter 7 Camera Raw Basics Chapter 8 Processing Photos in the Camera Raw Workspace CHAPTER Camera Raw Basics Many of the higher-end digital cameras support a file format that is commonly called camera raw. If your camera supports this format and you are serious about creating great photographs you probably want to be shooting in camera raw. Is camera raw really all that Well when you capture a picture in the standard JPEG format the camera takes the image from the image sensor and processes it before saving it to your memory card. This reduces the file size but it discards image information that could have been used to refine your photo. The camera raw format on the other hand saves the unprocessed file preserving all the image data so you can process it manually later. It s like being able to process your own negatives tweaking them to get the color and lighting just right. IN THIS CHAPTER Benefits of camera raw The Camera Raw workspace Setting preferences Creating snapshots Exporting RAW images This chapter introduces you to the camera raw format explaining why camera raw is superior to JPEG and the advantages and disadvantages of using it. I also explain what a DNG file is and introduce you to the Camera Raw workspace explaining the tools and showing you how to set preferences. Benefits of Camera Raw More Is Better Camera raw formats have been around for a few years now and many photographers won t shoot in anything else. The ability to use all the image data captured by the camera s sensors which amounts to trillions of colors is a heady feeling. The fact that camera raw also stores your settings as metadata .