User manual VIEWCAST OSPREY V4.4

[. . . ] User Guide Table of Contents Table of Contents TABLE OF CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II UL STATEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A FCC NOTICE: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A PRODUCT DISPOSAL INFORMATION: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] If you disable logos, all your other logo settings are retained for when you re-enable logos again. In Figure 2-41, the [Browse. . . ] button brings up a standard file select dialog. Logo files must be: 41 User Guide Chapter 2 · · In . bmp format with a . bmp filename extension. In RGB-24 format. If you have a graphic that is in another format, edit it with a drawing or photo edit program such as Windows Paint, and save it as RGB-24. Enable Keycolor Figure 2-42 You can control the key color and the transparency effect. If preview video is running, you will see your changes interactively (See Figure 2-42). A "key color" is a color that disappears from the graphic so that the underlying video shows through unchanged. If the Enable Key Color checkbox is unchecked, all colors are displayed. If the checkbox is checked, key coloring is activated. You can select one of four standard colors ­ dark gray, medium gray, cyan, or magenta ­ or a custom color. It you select Other, for a custom color, the three edit boxes ­ Red, Green, Blue ­ are activated, and you can enter any color value into these boxes. Key colors to identify transparent portions of logos can be exact or inexact. The Tolerance control (Figure 2-43) determines this. If Tolerance is 0, then all key colors have to exactly match the Red / Green / Blue values shown in the key color control group. If Tolerance is nonzero, then the Red / Green / Blue values can deviate from the key color by the tolerance value and still be treated as being equal to the key color. For example, it Tolerance is set to 5, and the key color is set to grey (192, 192, 192), then pixels in the bitmap with value (187, 187, 187) will also be transparent. Figure 2-43 Weighting The degree of transparency of the logo is variable through 256 steps. If the setting is 255, the logo will be opaque. If the setting is 0, the logo will be completely transparent. If you have set a keycolor, the weighting or transparency value is applied only to pixels that do not match the keycolor and hence are always completely transparent. You can set the weighting either with the slider or by editing the number in the edit box. (Figure 2-44). 42 User Guide Chapter 2 Figure 2-44 Note that the SimulStream Eval logo is a special case ­ it is restricted to the range 50 to 100 so that it cannot be made completely transparent Figure 2-45 Logo Position and Size The Logo Position and Size sub-page lets you position and scale the logo. It is strongly recommended that you have preview video running when you use these controls. The large indented rectangular area at the top of this sub-page represents the video area where the logo can be positioned. [. . . ] These lines are not present in every frame of video. There may also be a black band at the top of the frame. The Osprey 530/540/560 cards cannot eliminate these video artifacts. These artifacts will only be present when you are using a copy-protected source, such as a high-quality DVD for testing a card. Appendix C ­ Page 1 User Guide Appendix C There are other brands of copy-protection besides Macrovision. [. . . ]