diff --git a/ofdgo_image.go b/ofdgo_image.go
index cc6f239..983b7fc 100644
--- a/ofdgo_image.go
+++ b/ofdgo_image.go
@@ -21,7 +21,7 @@ import (
 	"image"
 	"image/color"
 
-	canvas_image "github.com/tdewolff/canvas/image"
+	canvasimage "github.com/tdewolff/canvas/image"
 	_ "github.com/xiaoqidun/jbig2"
 	_ "golang.org/x/image/bmp"
 )
@@ -33,11 +33,11 @@ func decodeImageData(data []byte) (image.Image, string, error) {
 	if _, format, err := image.DecodeConfig(bytes.NewReader(data)); err == nil {
 		switch format {
 		case "jpeg":
-			if img, err := canvas_image.NewJPEGImage(bytes.NewReader(data)); err == nil {
+			if img, err := canvasimage.NewJPEGImage(bytes.NewReader(data)); err == nil {
 				return img, format, nil
 			}
 		case "png":
-			if img, err := canvas_image.NewPNGImage(bytes.NewReader(data)); err == nil {
+			if img, err := canvasimage.NewPNGImage(bytes.NewReader(data)); err == nil {
 				return img, format, nil
 			}
 		}
diff --git a/ofdgo_renderer_image.go b/ofdgo_renderer_image.go
index a525026..e94b15a 100644
--- a/ofdgo_renderer_image.go
+++ b/ofdgo_renderer_image.go
@@ -19,7 +19,7 @@ import (
 	"image/color"
 
 	"github.com/tdewolff/canvas"
-	canvas_image "github.com/tdewolff/canvas/image"
+	canvasimage "github.com/tdewolff/canvas/image"
 )
 
 // renderImage 渲染图片
@@ -113,7 +113,7 @@ func imageWithTransparentEdge(img image.Image) (image.Image, int) {
 	if w == 0 || h == 0 {
 		return img, 0
 	}
-	if src, ok := img.(*canvas_image.Image); ok && src.Mimetype == "image/jpeg" && src.Mask == nil {
+	if src, ok := img.(*canvasimage.Image); ok && src.Mimetype == "image/jpeg" && src.Mask == nil {
 		return img, 0
 	}
 	if opaque, ok := img.(interface{ Opaque() bool }); ok && opaque.Opaque() {