ossim中改变图像处理的块大小

 

ossim中默认图像处理的块大小是64*64，如果要修改为自定义大小，可以使用rspfImageSourceSequencer进行修改，具体方式如下：

vector<ossim_uint32> outBandList;
outBandList.push_back(1);
ossimBandSelector* theBandSelector = new ossimBandSelector;
theBandSelector->connectMyInputTo(0, handler);
theBandSelector->setOutputBandList(outBandList);

filter->connectMyInputTo(0,theBandSelector);

ossimImageFileWriter* writer = ossimImageWriterFactoryRegistry::instance()->createWriter(ossimString("tiff_strip"));
writer->setFilename(strOutFile);
writer->connectMyInputTo(filter);

ossimImageSourceSequencer* theImageSourceSequencer = new ossimImageSourceSequencer;
theImageSourceSequencer->setTileSize(ossimIpt(1024,1024));
writer->changeSequencer(theImageSourceSequencer);

ossimStdOutProgress progress(0, true);
writer->addListener(&progress);

//writer->setTileSize(ossimIpt(1024,1024));

writer->execute();
writer->removeListener(&progress);