X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=analyzer.rst;h=72305df877d53340ff13f52ff2615140efdbce72;hb=bc58188866410fbfa99b1af7d3ded162b4a64623;hp=5496eff859b16bbaf87a7454c5660cfc581c8b82;hpb=fbe04462dcf0578932141d66faf3623f86cfded4;p=nageru-docs diff --git a/analyzer.rst b/analyzer.rst index 5496eff..72305df 100644 --- a/analyzer.rst +++ b/analyzer.rst @@ -12,7 +12,7 @@ and that the entire 0–255 brightness range is both being input and output. The **frame analyzer**, available from the video menu, can help with this. It allows you to look at any input, grab a frame (manually or periodically), and then hover over specific pixels to look at their RGB -values. When you're done, simply close it, and it will stop grabbing frames. +values. When you're done, close it, and it will stop grabbing frames. .. _synthetictests: @@ -20,7 +20,7 @@ Synthetic tests and common problems ----------------------------------- If your input is synthetic, such as from a computer, you may want to use an -image such as this one as your test source (simply right-click and save): +image such as this one as your test source (right-click and save): .. image:: images/wedges.png @@ -31,7 +31,7 @@ with slightly fewer steps: 255, 238, 221, 204, 187, 170, 153, 136, 119, 102, 85, 68, 51, 34, 17, 0). (You can also use any other picture where you know the right pixel values, of course.) -Using the frame analyzer, you can simply look at each value to see if the input +Using the frame analyzer, you can look at each value to see if the input matches the expected values. Being off-by-one (or even occasionally two) is normal due to Y'CbCr rounding errors, but more than this indicates that something in your chain is doing something wrong with the pixel values. @@ -53,7 +53,7 @@ Common errors include: Nageru cannot correct arbitrary input problems, but the most common ones can be fixed by selecting a different *input interpretation* for the card in question. -Simply right-click the input, and you can choose from a variety of +Right-click the input, and you can choose from a variety of different ones. Optionally, check the settings on your sending device to see if they can be corrected, as this is usually a better choice than forcing Nageru to interpret the output in a nonstandard way.