diff --git a/image.go b/image.go
index 36303363d..f76035eb1 100644
--- a/image.go
+++ b/image.go
@@ -133,15 +133,6 @@ type DrawImageOptions struct {
 	// If either is FilterDefault and the other is not, the latter is used.
 	// Otherwise, Filter specified at DrawImageOptions is used.
 	Filter Filter
-
-	// Deprecated: (as of 1.5.0) Use SubImage instead.
-	ImageParts ImageParts
-
-	// Deprecated: (as of 1.1.0) Use SubImage instead.
-	Parts []ImagePart
-
-	// Deprecated: (as of 1.9.0) Use SubImage instead.
-	SourceRect *image.Rectangle
 }
 
 // DrawImage draws the given image on the image i.
@@ -202,43 +193,7 @@ func (i *Image) DrawImage(img *Image, options *DrawImageOptions) error {
 		options = &DrawImageOptions{}
 	}
 
-	parts := options.ImageParts
-	// Parts is deprecated. This implementations is for backward compatibility.
-	if parts == nil && options.Parts != nil {
-		parts = imageParts(options.Parts)
-	}
-
-	// ImageParts is deprecated. This implementations is for backward compatibility.
-	if parts != nil {
-		l := parts.Len()
-		for idx := 0; idx < l; idx++ {
-			sx0, sy0, sx1, sy1 := parts.Src(idx)
-			dx0, dy0, dx1, dy1 := parts.Dst(idx)
-			op := &DrawImageOptions{
-				ColorM:        options.ColorM,
-				CompositeMode: options.CompositeMode,
-				Filter:        options.Filter,
-			}
-			op.GeoM.Scale(
-				float64(dx1-dx0)/float64(sx1-sx0),
-				float64(dy1-dy0)/float64(sy1-sy0))
-			op.GeoM.Translate(float64(dx0), float64(dy0))
-			op.GeoM.Concat(options.GeoM)
-			i.DrawImage(img.SubImage(image.Rect(sx0, sy0, sx1, sy1)).(*Image), op)
-		}
-		return nil
-	}
-
 	bounds := img.Bounds()
-
-	// SourceRect is deprecated. This implementation is for backward compatibility.
-	if options.SourceRect != nil {
-		bounds = bounds.Intersect(*options.SourceRect)
-		if bounds.Empty() {
-			return nil
-		}
-	}
-
 	mode := driver.CompositeMode(options.CompositeMode)
 
 	filter := driver.FilterNearest
diff --git a/imageparts.go b/imageparts.go
deleted file mode 100644
index 80cc2a981..000000000
--- a/imageparts.go
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright 2015 Hajime Hoshi
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package ebiten
-
-import (
-	"image"
-)
-
-// ImagePart is sub image regions of the source and destination images.
-//
-// Deprecated: (as of 1.1.0) Use SubImage instead.
-type ImagePart struct {
-	Dst image.Rectangle
-	Src image.Rectangle
-}
-
-// ImageParts is sub image regions of the source and destination images.
-//
-// Deprecated: (as of 1.5.0) Use SubImage instead.
-type ImageParts interface {
-	Len() int
-	Dst(i int) (x0, y0, x1, y1 int)
-	Src(i int) (x0, y0, x1, y1 int)
-}
-
-// NOTE: Remove this in the future.
-type imageParts []ImagePart
-
-func (p imageParts) Len() int {
-	return len(p)
-}
-
-func (p imageParts) Dst(i int) (x0, y0, x1, y1 int) {
-	dst := &p[i].Dst
-	return dst.Min.X, dst.Min.Y, dst.Max.X, dst.Max.Y
-}
-
-func (p imageParts) Src(i int) (x0, y0, x1, y1 int) {
-	src := &p[i].Src
-	return src.Min.X, src.Min.Y, src.Max.X, src.Max.Y
-}