/* dup-init.c */
-uns image_dup_init(struct image_thread *thread, struct image_dup *dup, struct image *image, struct mempool *pool);
+uns image_dup_init(struct image_context *ctx, struct image_dup *dup, struct image *image, struct mempool *pool);
uns image_dup_estimate_size(uns cols, uns rows);
/* dup-cmp.c */