diff --git a/autotests/write/format/heif/Format_Grayscale16.heif b/autotests/write/format/heif/Format_Grayscale16.heif index 07de4bb..0cd4ae5 100644 Binary files a/autotests/write/format/heif/Format_Grayscale16.heif and b/autotests/write/format/heif/Format_Grayscale16.heif differ diff --git a/autotests/write/format/heif/Format_Grayscale8.heif b/autotests/write/format/heif/Format_Grayscale8.heif index 9773fea..664a815 100644 Binary files a/autotests/write/format/heif/Format_Grayscale8.heif and b/autotests/write/format/heif/Format_Grayscale8.heif differ diff --git a/autotests/write/format/heif/Format_Mono.heif b/autotests/write/format/heif/Format_Mono.heif index e2591aa..a0255a0 100644 Binary files a/autotests/write/format/heif/Format_Mono.heif and b/autotests/write/format/heif/Format_Mono.heif differ diff --git a/autotests/write/format/heif/Format_MonoLSB.heif b/autotests/write/format/heif/Format_MonoLSB.heif index e2591aa..a0255a0 100644 Binary files a/autotests/write/format/heif/Format_MonoLSB.heif and b/autotests/write/format/heif/Format_MonoLSB.heif differ