Pixel de imagem tifff

[ricardo coelho designer 0]

Boa tarde, estou desenvolvendo um banco de imagens em asp e preciso pegar os pixel da imagem em .tif (ex. 550x 1020)

 

O Código que estou usando mostra as imagens em BMP, JPG, GIF, PNG mas não (retirei aqui do forum) mas não entendi o como faço para pegar os pixel em tif, se alguém puder me ajudar...

 

Segue código que estou usando.

 

<%
Set objFS = Server.CreateObject("Scripting.FileSystemObject")
Set objFile = objFS.GetFile("G:\Inetpub\wwwroot\SITEPRATIKE\2009\codigos\DA_PASTA_PARA_O_BANCO\IMG_2220.TIF")
If gfxSpex(objFile.Path, w, h, c, strType) = True then
  Response.Write " Imagem: <b>" & objFile.name & "</b><br>"
  Response.Write "Tamanho: <b>" & w & "x" & h & "</b>"
End If
Set objFile = Nothing
Set objFS = Nothing
%>
<%
  '****************************************************************************
*******
  ' This routine will attempt to identify any filespec passed
  ' as a graphic file (regardless of the extension).
  ' This will work with BMP, GIF, JPG and PNG files.
  '****************************************************************************
*******
  ' Based on ideas presented by David Crowell (credit where due)
  '****************************************************************************
*******

  '****************************************************************************
*******
  ' This function gets a specified number of bytes from any
  ' file, starting at the offset (base 1)
  '   Passed:
  '	 flnm		=> Filespec of file to read
  '	 offset	  => Offset at which to start reading
  '	 bytes	   => How many bytes to read
  '****************************************************************************
*******

  function GetBytes(flnm, offset, bytes)
	 Dim objFSO
	 Dim objFTemp
	 Dim objTextStream
	 Dim lngSize
	 on error resume next
	 Set objFSO = CreateObject("Scripting.FileSystemObject")
	 ' First, we get the filesize
	 Set objFTemp = objFSO.GetFile(flnm)
	 lngSize = objFTemp.Size
	 set objFTemp = nothing
	 fsoForReading = 1
	 Set objTextStream = objFSO.OpenTextFile(flnm, fsoForReading)
	 if offset > 0 then
		strBuff = objTextStream.Read(offset - 1)
	 end if
	 if bytes = -1 then  ' Get All!
		GetBytes = objTextStream.Read(lngSize)  'ReadAll
	 else
		GetBytes = objTextStream.Read(bytes)
	 end if
	 objTextStream.Close
	 set objTextStream = nothing
	 set objFSO = nothing
  end function


  '****************************************************************************
*******
  ' Functions to convert two bytes to a numeric value (long)
  '****************************************************************************
*******

  function lngConvert(strTemp)
	 lngConvert = clng(asc(left(strTemp, 1)) + ((asc(right(strTemp, 1)) * 256)))
  end function

  function lngConvert2(strTemp)
	 lngConvert2 = clng(asc(right(strTemp, 1)) + ((asc(left(strTemp, 1)) * 256)))
  end function


  '****************************************************************************
*******
  ' This function does most of the real work. It will attempt
  ' to read any file, regardless of the extension, and will
  ' identify if it is a graphical image.
  '   Passed:
  '	 flnm		=> Filespec of file to read
  '	 width	   => width of image
  '	 height	  => height of image
  '	 depth	   => color depth (in number of colors)
  '	 strImageType=> type of image (e.g. GIF, BMP, etc.)
  '****************************************************************************
*******

  function gfxSpex(flnm, width, height, depth, strImageType)
	 dim strPNG
	 dim strGIF
	 dim strBMP
	 dim strTIF
	 dim strType
	 strType = ""
	 strImageType = "(unknown)"
	 gfxSpex = False
	 strPNG = chr(137) & chr(80) & chr(78)
	 strGIF = "GIF"
	 strBMP = chr(66) & chr(77)
	 strTIF = "TIF"
	 strTIF = chr(66) & chr(77)
	 strType = GetBytes(flnm, 0, 3)

	 if strType = strGIF then	' is GIF
		strImageType = "GIF"
		Width = lngConvert(GetBytes(flnm, 7, 2))
		Height = lngConvert(GetBytes(flnm, 9, 2))
		Depth = 2 ^ ((asc(GetBytes(flnm, 11, 1)) and 7) + 1)
		gfxSpex = True

	 elseif left(strType, 2) = strBMP then  ' is BMP
		strImageType = "BMP"
		Width = lngConvert(GetBytes(flnm, 19, 2))
		Height = lngConvert(GetBytes(flnm, 23, 2))
		Depth = 2 ^ (asc(GetBytes(flnm, 29, 1)))
		gfxSpex = True

	 elseif strType = strPNG then   ' Is PNG
		strImageType = "PNG"
		Width = lngConvert2(GetBytes(flnm, 19, 2))
		Height = lngConvert2(GetBytes(flnm, 23, 2))
		Depth = getBytes(flnm, 25, 2)
		select case asc(right(Depth,1))
		   case 0
			  Depth = 2 ^ (asc(left(Depth, 1)))
			  gfxSpex = True
		   case 2
			  Depth = 2 ^ (asc(left(Depth, 1)) * 3)
			  gfxSpex = True
		   case 3
			  Depth = 2 ^ (asc(left(Depth, 1)))  '8
			  gfxSpex = True
		   case 4
			  Depth = 2 ^ (asc(left(Depth, 1)) * 2)
			  gfxSpex = True
		   case 6
			  Depth = 2 ^ (asc(left(Depth, 1)) * 4)
			  gfxSpex = True
		   case else
			  Depth = -1
		end select
	 else
		strBuff = GetBytes(flnm, 0, -1)  ' Get all bytes from file
		lngSize = len(strBuff)
		flgFound = 0
		strTarget = chr(255) & chr(216) & chr(255)
		flgFound = instr(strBuff, strTarget)
		if flgFound = 0 then
		   exit function
		end if

		strImageType = "JPG"
		lngPos = flgFound + 2
		ExitLoop = false
		do while ExitLoop = False and lngPos < lngSize
		   do while asc(mid(strBuff, lngPos, 1)) = 255 and lngPos < lngSize
			  lngPos = lngPos + 1
		   loop
		   if asc(mid(strBuff, lngPos, 1)) < 192 or asc(mid(strBuff, lngPos, 1)) > 195 then
			  lngMarkerSize = lngConvert2(mid(strBuff, lngPos + 1, 2))
			  lngPos = lngPos + lngMarkerSize  + 1
		   else
			  ExitLoop = True
		   end if
	   loop
	   if ExitLoop = False then
		  Width = -1
		  Height = -1
		  Depth = -1
	   else

		  Height = lngConvert2(mid(strBuff, lngPos + 4, 2))
		  Width = lngConvert2(mid(strBuff, lngPos + 6, 2))
		  Depth = 2 ^ (asc(mid(strBuff, lngPos + 8, 1)) * 8)
		  gfxSpex = True
	   end if
	 end if
  end function
%>

[xanburzum 169]

já tentou o Componente Active Image Processing

[ricardo coelho designer 0]

já tentou o Componente Active Image Processing

Através do código que postei não tem como inserir algum comando que possa fazer sem o componente, pois no servidor talves não tenha esse componente?