attachment-0001
<html><head><base href="x-msg://275/"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Apr 18, 2011, at 11:38 AM, Petrie, Glen wrote:</div><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div lang="EN-US" link="blue" vlink="purple"><div class="Section1" style="page: Section1; "><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; ">Can we change the required on mono to optional and bi-level be required.<o:p></o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; "><o:p> </o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; ">Bi-level required for any printer<o:p></o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; ">Color required is color printer<o:p></o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; ">Mono 1 toner – optional<o:p></o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; ">Mono >2 toners – optional<o:p></o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; ">And the other is the table are optional<o:p></o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; "><o:p> </o:p></span></font></div><div style="margin-top: 0in; margin-right: 0in; margin-bottom: 0.0001pt; margin-left: 0in; font-size: 12pt; font-family: 'Times New Roman'; "><font size="3" face="Cambria"><span style="font-size: 12pt; font-family: Cambria; ">Basically mono is a dithering of a single-color to produce an output from saturation to white. But dithering is a fancy thresholding (bi-level);</span></font></div></div></div></span></blockquote><div><br></div><div>I don't agree with this. Thresholding is not dithering, which by definition adds noise to the signal (in this case 2D color arrays) in order to more accurately portray the signal given limited output capabilities. The usage here is not to describe a particular algorithm but rather to specify intent: high contrast black and white output. You'd use this mode when scanning and printing forms, for example. (Oops - time for another thread...) It is pretty clear I need to convert Table 2 to a list of paragraphs describing the keywords and their meanings in detail.</div><div><br></div><div><br></div><div>The current requirements map to use cases - color and grayscale (monochrome) printing are required for our current use cases. "Bi-level" is not, although it is something we should consider for the scanned forms use case. We can continue to debate the requirements, but every OS and just about every driver for a color printer includes UI to print color as grayscale... If the intent is to allow a limited mobile client to do the same, we need to ask the printer to help out, and we can decide whether that means 1-color or process (N-color, N>1) black.</div><div><br></div></div><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div>________________________________________________________________________<br>Michael Sweet, Senior Printing System Engineer, PWG Chair<br></div></span>
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