note 55853 added to function.imagecopymergegray

// Using the same code I found here on php.net, // I was able to figure out how to convert GIF (or any other // format GD supports) to CIP format. CIP is the image // format for Cisco IP Phones... 7905/7940 and 7960 // models... Hope someone finds this useful and make it // better... /////// GIF2CIP PHP code /////// // Convert image in memory to grayscale $img_width = imageSX($im2); $img_height = imageSY($im2); // convert to grayscale // note: this will NOT affect your original image, unless // originalFileName and destinationFileName are the same for ($y = 0; $y <$img_height; $y++) { for ($x = 0; $x <$img_width; $x++) { $rgb = imagecolorat($im2, $x, $y); $red = ($rgb >> 16) & 0xFF; $green = ($rgb >> 8) & 0xFF; $blue = $rgb & 0xFF; $gray = round(.299*$red + .587*$green + .114*$blue); // shift gray level to the left $grayR = $gray << 16; // R: red $grayG = $gray << 8; // G: green $grayB = $gray; // B: blue // OR operation to compute gray value $grayColor = $grayR | $grayG | $grayB; // set the pixel color imagesetpixel ($im2, $x, $y, $grayColor); imagecolorallocate ($im2, $gray, $gray, $gray); } } ///////////////////////////////////////////////////////// // Modifies palette to only 4-colors (CIP Images on 7905/7940 & 7960 is 2-bit color) ImageTrueColorToPalette2($im2,FALSE,4); // Basic header for CIP Image files... header ("Content-type: text/xml"); echo "<CiscoIPPhoneImage> "; echo "<LocationX>-1</LocationX> "; echo "<LocationY>-1</LocationY> "; echo "<Width>132</Width> "; echo "<Height>65</Height> "; echo "<Depth>2</Depth> "; echo "<Data>"; // get image dimensions (almost same code as above) $img_width = imageSX($im2); $img_height = imageSY($im2); // convert to grayscale // note: this will NOT affect your original image, unless // originalFileName and destinationFileName are the same for ($y = 0; $y <$img_height; $y++) { for ($x = 0; $x+4 <$img_width; $x = $x+4) { for ($ix = 0; $ix < 4; $ix++) { $rgb = imagecolorat($im2, $x + $ix, $y); // I came up with this translation on my own // Some smart person is bound to perfect it if ($rgb=="2") {$rgb=0;$Gray1[$ix] = $rgb;continue;} if ($rgb=="0") {$rgb=2;$Gray1[$ix] = $rgb;continue;} if ($rgb=="1") {$rgb=1;$Gray1[$ix] = $rgb;continue;} if ($rgb=="3") {$rgb=3;$Gray1[$ix] = $rgb;continue;} } $gray1 = $Gray1[0]; $gray2 = $Gray1[1] << 2; $gray3 = $Gray1[2] << 4; $gray4 = $Gray1[3] << 6; // Pack 4 pixels into a single byte for CIP images $grey = $gray1 | $gray2 | $gray3 | $gray4; // CIP image data is sent in HEX, strtoupper is not really needed. $code = strtoupper(dechex($grey)); // My quick fix to padding single HEX values if (strlen($code)==1) $code = "0".$code; echo $code; } } echo "</Data>"; echo "<Title>$myvar</Title> "; echo "<Prompt>$city</Prompt> "; echo "</CiscoIPPhoneImage>"; exit; ---- Manual Page -- http://www.php.net/manual/en/function.imagecopymergegray.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+55853 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+55853&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+55853&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+55853&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+55853&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+55853&report=yes&reason=non-english Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+55853&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+55853&report=yes Search -- http://master.php.net/manage/user-notes.php