From decdae515b4a4ff6bf125d857754775d9e64c40f Mon Sep 17 00:00:00 2001
From: edgarriba <edgar.riba@gmail.com>
Date: Sat, 31 Oct 2015 20:11:05 +0100
Subject: [PATCH] set GA_Update flag in order remove ERROR 8: band 1: Attempt
 to write to read only dataset inGDALRasterBand::Fill()

---
 modules/imgcodecs/src/grfmt_gdal.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/imgcodecs/src/grfmt_gdal.cpp b/modules/imgcodecs/src/grfmt_gdal.cpp
index 1094b91b38..3d3bbb834e 100644
--- a/modules/imgcodecs/src/grfmt_gdal.cpp
+++ b/modules/imgcodecs/src/grfmt_gdal.cpp
@@ -461,7 +461,7 @@ bool GdalDecoder::readData( Mat& img ){
 bool GdalDecoder::readHeader(){
 
     // load the dataset
-    m_dataset = (GDALDataset*) GDALOpen( m_filename.c_str(), GA_ReadOnly);
+    m_dataset = (GDALDataset*) GDALOpen( m_filename.c_str(), GA_Update);
 
     // if dataset is null, then there was a problem
     if( m_dataset == NULL ){