TAILIEUCHUNG - Professional Information Technology-Programming Book part 20

Tham khảo tài liệu 'professional information technology-programming book part 20', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | shadows. High-key interpretations of an image tend to look dreamy glamorous and idealized. That s one of the reasons they keep cropping up as a fad in fashion female portraiture and cosmetic ads. However high-key images can be equally effective in creating a dreamy or foggy landscape or romantic wedding photo. One precaution any image that is destined to be interpreted as high-key should be adjusted in RAW so that all the detail falls inside the borders of the Histogram. In other words you don t want to see any more blocked detailespecially in the highlightsthan absolutely necessary even though you may decide it s appropriate when you finalize the adjustments in Photoshop. The Camera Raw Histogram should look something like the one in Figure 4-42. Of course this is an ideal Histogram for virtually any type of RAW file exposure interpretation. But it s more important here because if highlight detail is blocked to begin with there will be even more detail blocked when you use Photoshop to further interpret the image as high-key. Figure 4-42. The ACR adjustments and Histogram of a high-key interpretation. It would seem that the no brainer way to create a high-key version of the image would be to simply drag the Exposure slider far enough to the right. The problem with that is you push a lot of the brightest details which are precisely the ones you want to keep right off the edge of the Histogram. That means those highlights are blocked and you won t be able to see any detail in the area where it is most important to have it. Now let s try an interpretation that keeps detail in the highlights although perhaps not as much as we d have in a normal or low-key interpretation and in which there are at least enough blacks to keep the image from looking like it was a mistake. Then go to the Curves tab and select Linear from the Tone Curve menu. The Linear curve is superimposed over the image s Histogram. At the point where the Histogram reaches the greatest height has the .

Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.