1 files changed, 0 insertions, 93 deletions
diff --git a/Godeps/_workspace/src/code.google.com/p/graphics-go/graphics/detect/integral.go b/Godeps/_workspace/src/code.google.com/p/graphics-go/graphics/detect/integral.go
deleted file mode 100644
index 814ced590..000000000
--- a/Godeps/_workspace/src/code.google.com/p/graphics-go/graphics/detect/integral.go
+++ /dev/null
@@ -1,93 +0,0 @@
-// Copyright 2011 The Graphics-Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package detect
-
-import (
-	"image"
-	"image/draw"
-)
-
-// integral is an image.Image-like structure that stores the cumulative
-// sum of the preceding pixels. This allows for O(1) summation of any
-// rectangular region within the image.
-type integral struct {
-	// pix holds the cumulative sum of the image's pixels. The pixel at
-	// (x, y) starts at pix[(y-rect.Min.Y)*stride + (x-rect.Min.X)*1].
-	pix    []uint64
-	stride int
-	rect   image.Rectangle
-}
-
-func (p *integral) at(x, y int) uint64 {
-	return p.pix[(y-p.rect.Min.Y)*p.stride+(x-p.rect.Min.X)]
-}
-
-func (p *integral) sum(b image.Rectangle) uint64 {
-	c := p.at(b.Max.X-1, b.Max.Y-1)
-	inY := b.Min.Y > p.rect.Min.Y
-	inX := b.Min.X > p.rect.Min.X
-	if inY && inX {
-		c += p.at(b.Min.X-1, b.Min.Y-1)
-	}
-	if inY {
-		c -= p.at(b.Max.X-1, b.Min.Y-1)
-	}
-	if inX {
-		c -= p.at(b.Min.X-1, b.Max.Y-1)
-	}
-	return c
-}
-
-func (m *integral) integrate() {
-	b := m.rect
-	for y := b.Min.Y; y < b.Max.Y; y++ {
-		for x := b.Min.X; x < b.Max.X; x++ {
-			c := uint64(0)
-			if y > b.Min.Y && x > b.Min.X {
-				c += m.at(x-1, y)
-				c += m.at(x, y-1)
-				c -= m.at(x-1, y-1)
-			} else if y > b.Min.Y {
-				c += m.at(b.Min.X, y-1)
-			} else if x > b.Min.X {
-				c += m.at(x-1, b.Min.Y)
-			}
-			m.pix[(y-m.rect.Min.Y)*m.stride+(x-m.rect.Min.X)] += c
-		}
-	}
-}
-
-// newIntegrals returns the integral and the squared integral.
-func newIntegrals(src image.Image) (*integral, *integral) {
-	b := src.Bounds()
-	srcg, ok := src.(*image.Gray)
-	if !ok {
-		srcg = image.NewGray(b)
-		draw.Draw(srcg, b, src, b.Min, draw.Src)
-	}
-
-	m := integral{
-		pix:    make([]uint64, b.Max.Y*b.Max.X),
-		stride: b.Max.X,
-		rect:   b,
-	}
-	mSq := integral{
-		pix:    make([]uint64, b.Max.Y*b.Max.X),
-		stride: b.Max.X,
-		rect:   b,
-	}
-	for y := b.Min.Y; y < b.Max.Y; y++ {
-		for x := b.Min.X; x < b.Max.X; x++ {
-			os := (y-b.Min.Y)*srcg.Stride + x - b.Min.X
-			om := (y-b.Min.Y)*m.stride + x - b.Min.X
-			c := uint64(srcg.Pix[os])
-			m.pix[om] = c
-			mSq.pix[om] = c * c
-		}
-	}
-	m.integrate()
-	mSq.integrate()
-	return &m, &mSq
-}