[Image-SIG] Enhancement patch for PILdriver

[Eric S. Raymond]

There's no submission address in the PIL distribution.

Diffs between last version checked in and current workfile(s):

--- README	2001/07/17 06:23:25	1.1
+++ README	2001/07/17 06:26:05
@@ -10,6 +10,13 @@
 	/F
 
 --------------------------------------------------------------------
+pildriver.py
+
+A class implementing an image-processing calculator for scripts.
+Parses lists of commnds (or, called interactively, command-line
+arguments) into image loads, transformations, and saves.   
+
+--------------------------------------------------------------------
 viewer.py
 
 A simple image viewer.  Can display all file formats handled by
--- pildriver.py	2001/07/17 06:30:12	1.1
+++ pildriver.py	2001/07/17 06:59:12
@@ -22,7 +22,7 @@
 space-separated tokens and passed to the execute method.
 
 In the method descriptions below, a first line beginning with the string
-`usage:' means this method can be invokeed with the token that follows
+`usage:' means this method can be invoked with the token that follows
 it.  Following <>-enclosed arguments describe how the method interprets
 the entries on the stack.  Each argument specification begins with a
 type specification: either `int', `float', `string', or `image'.
@@ -209,6 +209,26 @@
         image = self.do_pop()
         self.push(image.filter(filter))
 
+    def do_getbbox(self):
+        """usage: getbbox
+
+        Push left, upper, right, and lower pixel coordinates of the top image.
+        """
+        bounding_box = self.do_pop().getbbox()
+        self.push(bounding_box[3])
+        self.push(bounding_box[2])
+        self.push(bounding_box[1])
+        self.push(bounding_box[0])
+
+    def do_getextrema(self):
+        """usage: extrema
+
+        Push minimum and maximum pixel values of the top image.
+        """
+        extrema = self.do_pop().extrema()
+        self.push(extrema[1])
+        self.push(extrema[0])
+
     def do_offset(self):
         """usage: offset <int:xoffset> <int:yoffset> <image:pic1>
         
@@ -218,7 +238,6 @@
         yoff = int(self.do_pop())
         image = self.do_pop()
         self.push(image.offset(xoff, yoff))
-
 
     def do_paste(self):
         """usage: paste <image:figure> <int:xoffset> <int:yoffset> <image:ground>

End of diffs.
-- 
		<a href="http://www.tuxedo.org/~esr/">Eric S. Raymond</a>

Gun Control: The theory that a woman found dead in an alley, raped and
strangled with her panty hose, is somehow morally superior to a
woman explaining to police how her attacker got that fatal bullet wound.
	-- L. Neil Smith