diff --git a/sys/src/cmd/jpg/bmp.c b/sys/src/cmd/jpg/bmp.c
index 9aacdb0d0..c1775b71e 100644
--- a/sys/src/cmd/jpg/bmp.c
+++ b/sys/src/cmd/jpg/bmp.c
@@ -24,6 +24,16 @@ char	*show(int, char*);
 
 Rawimage** readbmp(int fd, int colorspace);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -35,9 +45,7 @@ eresized(int new)
 	}
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(image->r);
-	r.max.y = r.min.y+Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	drawop(screen, r, image, nil, image->r.min, S);
 	flushimage(display, 1);
diff --git a/sys/src/cmd/jpg/gif.c b/sys/src/cmd/jpg/gif.c
index 33d703bc9..235a9dce1 100644
--- a/sys/src/cmd/jpg/gif.c
+++ b/sys/src/cmd/jpg/gif.c
@@ -26,14 +26,14 @@ char	*show(int, char*);
 Rectangle
 imager(void)
 {
-	Rectangle r;
+	Point p1, p2;
 
 	if(allims==nil || allims[0]==nil)
 		return screen->r;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(allims[0]->r);
-	r.max.y = r.min.y+Dy(allims[0]->r);
-	return r;
+
+	p1 = addpt(divpt(subpt(allims[0]->r.max, allims[0]->r.min), 2), allims[0]->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(allims[0]->r, subpt(p2, p1));
 }
 
 void
diff --git a/sys/src/cmd/jpg/jpg.c b/sys/src/cmd/jpg/jpg.c
index 307dc347f..cf1eb4127 100644
--- a/sys/src/cmd/jpg/jpg.c
+++ b/sys/src/cmd/jpg/jpg.c
@@ -26,6 +26,16 @@ enum{
 
 char	*show(int, char*, int);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -37,9 +47,7 @@ eresized(int new)
 	}
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(image->r);
-	r.max.y = r.min.y+Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	drawop(screen, r, image, nil, image->r.min, S);
 	flushimage(display, 1);
diff --git a/sys/src/cmd/jpg/png.c b/sys/src/cmd/jpg/png.c
index a27461186..cf8803e87 100644
--- a/sys/src/cmd/jpg/png.c
+++ b/sys/src/cmd/jpg/png.c
@@ -23,6 +23,16 @@ enum{
 
 char	*show(int, char*, int);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -34,9 +44,7 @@ eresized(int new)
 	}
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(image->r);
-	r.max.y = r.min.y+Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	draw(screen, r, image, nil, image->r.min);
 	flushimage(display, 1);
diff --git a/sys/src/cmd/jpg/ppm.c b/sys/src/cmd/jpg/ppm.c
index 58811b921..89945ae63 100644
--- a/sys/src/cmd/jpg/ppm.c
+++ b/sys/src/cmd/jpg/ppm.c
@@ -22,6 +22,16 @@ enum{
 
 char	*show(int, char*);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -33,9 +43,7 @@ eresized(int new)
 	}
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(image->r);
-	r.max.y = r.min.y+Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	drawop(screen, r, image, nil, image->r.min, S);
 	flushimage(display, 1);
diff --git a/sys/src/cmd/jpg/tga.c b/sys/src/cmd/jpg/tga.c
index 940d76d88..a505792fb 100644
--- a/sys/src/cmd/jpg/tga.c
+++ b/sys/src/cmd/jpg/tga.c
@@ -24,6 +24,16 @@ char	*show(int, char*);
 
 Rawimage** readtga(int fd);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -35,9 +45,7 @@ eresized(int new)
 	}
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(image->r);
-	r.max.y = r.min.y+Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	drawop(screen, r, image, nil, image->r.min, S);
 	flushimage(display, 1);
diff --git a/sys/src/cmd/jpg/tif.c b/sys/src/cmd/jpg/tif.c
index 70c4f2282..9f7bc8a60 100644
--- a/sys/src/cmd/jpg/tif.c
+++ b/sys/src/cmd/jpg/tif.c
@@ -22,6 +22,16 @@ enum {
 int init(void);
 char *show(int, char *, int);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -31,9 +41,7 @@ eresized(int new)
 		sysfatal("getwindow: %r");
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x + Dx(image->r);
-	r.max.y = r.min.y + Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	drawop(screen, r, image, nil, image->r.min, S);
 	flushimage(display, 1);
diff --git a/sys/src/cmd/jpg/v210.c b/sys/src/cmd/jpg/v210.c
index 1bb581349..65f5ff5de 100644
--- a/sys/src/cmd/jpg/v210.c
+++ b/sys/src/cmd/jpg/v210.c
@@ -24,6 +24,16 @@ char	*show(int, char*);
 
 Rawimage** readV210(int fd, int colorspace);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -35,9 +45,7 @@ eresized(int new)
 	}
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(image->r);
-	r.max.y = r.min.y+Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	drawop(screen, r, image, nil, image->r.min, S);
 	flushimage(display, 1);
diff --git a/sys/src/cmd/jpg/yuv.c b/sys/src/cmd/jpg/yuv.c
index 4b52d4ff8..47811ab22 100644
--- a/sys/src/cmd/jpg/yuv.c
+++ b/sys/src/cmd/jpg/yuv.c
@@ -24,6 +24,16 @@ char	*show(int, char*);
 
 Rawimage** readyuv(int fd, int colorspace);
 
+Rectangle
+imager(Image *i)
+{
+	Point p1, p2;
+
+	p1 = addpt(divpt(subpt(i->r.max, i->r.min), 2), i->r.min);
+	p2 = addpt(divpt(subpt(screen->clipr.max, screen->clipr.min), 2), screen->clipr.min);
+	return rectaddpt(i->r, subpt(p2, p1));
+}
+
 void
 eresized(int new)
 {
@@ -35,9 +45,7 @@ eresized(int new)
 	}
 	if(image == nil)
 		return;
-	r = insetrect(screen->clipr, Edge+Border);
-	r.max.x = r.min.x+Dx(image->r);
-	r.max.y = r.min.y+Dy(image->r);
+	r = imager(image);
 	border(screen, r, -Border, nil, ZP);
 	drawop(screen, r, image, nil, image->r.min, S);
 	flushimage(display, 1);