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Diffstat (limited to 'pnmnorm.html')
| -rw-r--r-- | pnmnorm.html | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/pnmnorm.html b/pnmnorm.html index 738987bb..8c025984 100644 --- a/pnmnorm.html +++ b/pnmnorm.html @@ -107,15 +107,15 @@ decimal. Zero is valid and is the same as <b>-bvalue=0</b> or <b>-wvalue=</b><i>maxval</i>, respectively. <p>Because there are whole numbers of pixels at each brightness, -<b>pnmnorm</b> obviously can't guarantee the exact per centage, so it -arranges that <em>at least</em> the per centage of pixels you specify +<b>pnmnorm</b> obviously can't guarantee the exact percentage, so it +arranges that <em>at least</em> the percentage of pixels you specify get remapped as promised. <p>It is possible for your <b>-bpercent</b> or <b>-wpercent</b> to overlap your <b>-wvalue</b> or <b>-bvalue</b>, respectively. For example, you say <b>-bpercent=20</b> and <b>-wvalue=100</b> for an -image in which only 10 per cent of the pixels are darker than 100. -In that case, <b>pnmnorm</b> adjusts the per centile value as +image in which only 10 percent of the pixels are darker than 100. +In that case, <b>pnmnorm</b> adjusts the percentile value as required. In the example, it uses 99 as the black value (like <b>-bvalue=99</b>). @@ -144,7 +144,7 @@ intensity by 4 units now differ by 10, and that might be unsightly. <p>So that you can put a limit on the amount of expansion without having to examine the image first, there is the <b>-maxexpand</b> option. It specifies the maximum expansion you will tolerate, as an -additional per centage. In the example above, you could say +additional percentage. In the example above, you could say <b>-maxexpand=50</b> to say you want the range to expand by at most 50%, regardless of your other options. <b>pnmnorm</b> figures out what intensity to stretch to full intensity and what intensity to |