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移除除指定颜色外的所有颜色 - RemoveOtherColors

函数简介

移除图像中除指定颜色范围外的所有颜色,将非指定颜色范围的像素设置为透明。

接口名称

RemoveOtherColors

DLL调用

long RemoveOtherColors(long ola, long ptr, string colorList);

参数说明

参数名类型说明
ola长整数型OLAPlug对象的指针,由 CreateCOLAPlugInterFace 接口生成。
ptr长整数型OLAImage对象的地址
colorList字符串颜色模型配置字符串,格式说明见 颜色模型说明 - ColorModel。JSON格式示例:[{"StartColor":"3278FA","EndColor":"6496FF","Type":0}];简化格式示例:3278FA~6496FF

示例

SDK 调用

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
long handle = ola.RemoveOtherColors(0, "value");
csharp
using OLAPlug;

var ola = new OLAPlugServer();
long handle = ola.RemoveOtherColors(0, "value");
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
handle = ola.RemoveOtherColors(0, "value")
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
long handle = ola.RemoveOtherColors(0, "value");
cpp
var ola = com("OlaPlug.OlaSoft")
var handle = ola.RemoveOtherColors(0, "value")
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
handle = ola.RemoveOtherColors(0, "value")
text
.局部变量 ola, OLAPlug
ola.创建 ()
handle = ola.RemoveOtherColors(0, "value")
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var handle = ola.RemoveOtherColors(0, "value");
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
长整数 handle = ola.RemoveOtherColors(0, "value")
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
long handle = ola.RemoveOtherColors(0, "value");

原生 DLL 调用

cpp
long instance = CreateCOLAPlugInterFace();
RemoveOtherColors(instance, 0, "[{");
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long CreateCOLAPlugInterFace();
[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern long RemoveOtherColors(long ola, long ptr, string colorList);

long instance = CreateCOLAPlugInterFace();
RemoveOtherColors(instance, 0, "[{");
python
from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
instance = ola.CreateCOLAPlugInterFace()
ola.RemoveOtherColors(instance, 0, "[{")

返回值

长整数型:成功返回处理后的OLAImage对象地址,失败返回0。

注意事项

  • 原始图片不会被修改,返回新的图片对象。
  • 返回的图片需调用 FreeImagePtr 释放内存。