diff --git a/pipi/codec/imlib.c b/pipi/codec/imlib.c
index 85343c8..45c5d35 100644
--- a/pipi/codec/imlib.c
+++ b/pipi/codec/imlib.c
@@ -50,6 +50,9 @@ pipi_image_t *pipi_load_imlib2(const char *name)
     img->codec_priv = (void *)priv;
     img->codec_format = PIPI_PIXELS_RGBA32;
 
+    img->wrap = 0;
+    img->u8 = 1;
+
     return img;
 }
 
@@ -86,6 +89,9 @@ void pipi_save_imlib2(pipi_image_t *img, const char *name)
 
         img->codec_priv = (void *)priv;
         img->codec_format = PIPI_PIXELS_RGBA32;
+
+        img->wrap = 0;
+        img->u8 = 1;
     }
 
     pipi_getpixels(img, img->codec_format);
diff --git a/pipi/codec/opencv.c b/pipi/codec/opencv.c
index 1086aaf..1b212cf 100644
--- a/pipi/codec/opencv.c
+++ b/pipi/codec/opencv.c
@@ -52,6 +52,9 @@ pipi_image_t *pipi_load_opencv(const char *name)
     img->codec_priv = (void *)priv;
     img->codec_format = PIPI_PIXELS_BGR24;
 
+    img->wrap = 0;
+    img->u8 = 1;
+
     return img;
 }
 
@@ -86,6 +89,9 @@ void pipi_save_opencv(pipi_image_t *img, const char *name)
 
         img->codec_priv = (void *)priv;
         img->codec_format = PIPI_PIXELS_BGR24;
+
+        img->wrap = 0;
+        img->u8 = 1;
     }
 
     pipi_getpixels(img, img->codec_format);
diff --git a/pipi/codec/sdl.c b/pipi/codec/sdl.c
index 906c87b..f096194 100644
--- a/pipi/codec/sdl.c
+++ b/pipi/codec/sdl.c
@@ -59,6 +59,9 @@ pipi_image_t *pipi_load_sdl(const char *name)
     img->codec_priv = (void *)priv;
     img->codec_format = PIPI_PIXELS_RGBA32;
 
+    img->wrap = 0;
+    img->u8 = 1;
+
     return img;
 }
 
@@ -90,6 +93,9 @@ void pipi_save_sdl(pipi_image_t *img, const char *name)
 
         img->codec_priv = (void *)priv;
         img->codec_format = PIPI_PIXELS_RGBA32;
+
+        img->wrap = 0;
+        img->u8 = 1;
     }
 
     pipi_getpixels(img, img->codec_format);
diff --git a/pipi/pipi.c b/pipi/pipi.c
index cadc891..083d781 100644
--- a/pipi/pipi.c
+++ b/pipi/pipi.c
@@ -50,6 +50,9 @@ pipi_image_t *pipi_new(int w, int h)
     img->last_modified = PIPI_PIXELS_UNINITIALISED;
     img->codec_format = PIPI_PIXELS_UNINITIALISED;
 
+    img->wrap = 0;
+    img->u8 = 1;
+
     return img;
 }
 
@@ -59,6 +62,7 @@ pipi_image_t *pipi_copy(pipi_image_t *src)
 
     /* Copy properties */
     dst->wrap = src->wrap;
+    dst->u8 = src->u8;
 
     /* Copy pixels, if any */
     if(src->last_modified != PIPI_PIXELS_UNINITIALISED)
diff --git a/pipi/pipi_internals.h b/pipi/pipi_internals.h
index 4f917eb..cc77665 100644
--- a/pipi/pipi_internals.h
+++ b/pipi/pipi_internals.h
@@ -25,7 +25,12 @@
 struct pipi_image
 {
     int w, h, pitch;
-    int wrap;
+
+    /* A list of internal image flags.
+     *  wrap: should filters wrap around at edges?
+     *  u8: are the image samples still 8-bit per channel? */
+    int wrap, u8;
+
     pipi_format_t codec_format, last_modified;
 
     /* List of all possible pixel formats */