灰度图处理

依赖

xml

<dependency>
    <groupId>com.geoviswtx</groupId>
    <artifactId>geoviswtx-utils-img</artifactId>
    <version>0.0.1-SNAPSHOT</version>
</dependency>

使用

java

GrayScaleImgUtils.creatGrayImgToInputStream(array[0], true)

代码示例

java

@Test
void testGfsImg() throws Exception {
    NetcdfFile netcdfFile
            = NetcdfFile.openInMemory("..\\dat\\1980s_nutrients.nc");

    String elem = "Temperature_surface";
    Variable variable = netcdfFile.findVariable(elem);
    
    Array read = variable.read();

    float[][][] array = (float[][][]) read.copyToNDJavaArray();

    try(ByteArrayInputStream in = GrayScaleImgUtils.creatGrayImgToInputStream(array[0], true,
            (y, x) -> (double) array[0][y][x] - 273.15);
        FileOutputStream out = new FileOutputStream("target\\" + elem + ".png"))
    {
        IOUtils.copy(in, out);
    }
}

灰度图处理 ​

依赖 ​

使用 ​

代码示例 ​

灰度图处理

依赖

使用

代码示例