Caffe学习：build/tools/convert

Caffe学习：build/tools/convert_imageset

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caffe/build/tools/convert_imageset用于将image图片转化为lmdb（leveldb）格式

编写命令，实现图片格式转化：

#!bin/sh

# 工具目录
TOOLS_ROOT=caffe/build/tools# train_datas存放训练图片
# label_train.txt保存图片标签
# shuffle参数用于打乱图片读取顺序
# train_db文件夹（不可手动新建）存放转换后的db文件
$TOOLS_ROOT/convert_imageset train_datas/ label_train.txt train_db --shuffle=true# test_datas存放测试图片
# label_test.txt保存图片标签
# shuffle参数用于打乱图片读取顺序
# test_db文件夹（不可手动新建）存放转换后的db文件
$TOOLS_ROOT/convert_imageset test_datas/ label_test.txt test_db --shuffle=true

具体参数详见caffe/tools/convert_imageset.cpp：

DEFINE_bool(gray, false,"When this option is on, treat images as grayscale ones");
DEFINE_bool(shuffle, false,"Randomly shuffle the order of images and their labels");
DEFINE_string(backend, "lmdb","The backend {lmdb, leveldb} for storing the result");
DEFINE_int32(resize_width, 0, "Width images are resized to");
DEFINE_int32(resize_height, 0, "Height images are resized to");
DEFINE_bool(check_size, false,"When this option is on, check that all the datum have the same size");
DEFINE_bool(encoded, false,"When this option is on, the encoded image will be save in datum");
DEFINE_string(encode_type, "","Optional: What type should we encode the image as ('png','jpg',...).");