diff -urNp old/src/libjasper/jp2/jp2_enc.c new/src/libjasper/jp2/jp2_enc.c

--- old/src/libjasper/jp2/jp2_enc.c	2018-06-21 09:46:45.090301777 +0200

+++ new/src/libjasper/jp2/jp2_enc.c	2018-06-21 10:18:17.602305787 +0200

@@ -115,6 +115,11 @@ int sgnd;

 	iccstream = 0;

 	iccprof = 0;

+	if (jas_image_numcmpts(image) < 1) {

+	//	jas_eprintf("image must have at least one component\n");

+		goto error;

+	}

+

 	allcmptssame = 1;

 	sgnd = jas_image_cmptsgnd(image, 0);

 	prec = jas_image_cmptprec(image, 0);