如何使用OV7670 ESP32和SPIFFS保存位图？

Question

我正在使用OV7670和ESP32捆绑包：https://github.com/bitluni/ESP32CameraI2S进行wifi摄像头项目。

如何在SPIFFS中使用File保存位图？

部分代码：

void Get_photo (AsyncWebServerRequest * request) {
   camera-> oneFrame ();
   File file = SPIFFS.open ("/ Images / test.bmp", FILE_WRITE); // How to save to this file?

   for (int i = 0; i <BMP :: headerSize; i ++)
   {
       bmpHeader [i];
   }

   for (int i = 0; i <camera-> xres * camera-> yres * 2; i ++)
   {
      camera-> frame [i];
   }


  Serial.println ("PHOTO_OK!");
}

Answer 1

不确定您仍然需要答案，但这可能会对某人有所帮助。您正在读取值，但未将其写入文件。

    Iso_outliers = IsolationForest().fit(X_train)
    Iso_outliers_train = Iso_outliers.predict(X_train)

请记住，由于两个文件不能使用相同的名称，因此每次调用void Get_photo (AsyncWebServerRequest * request) { camera-> oneFrame (); File file = SPIFFS.open ("/ Images / test.bmp", FILE_WRITE); // Here the file is opened if (!file) { Serial.println("Error opening the file."); // Good practice to check if the file was correctly opened return; // If file not opened, do not proceed } for (int i = 0; i <BMP :: headerSize; i ++) { file.write(bmpHeader [i]); // Writes header information to the BMP file } for (int i = 0; i <camera-> xres * camera-> yres * 2; i ++) { file.write(camera-> frame [i]); // Writes pixel information to the BMP file } file.close(); // Closing the file saves its content Serial.println ("PHOTO_OK!"); } 时，它将覆盖Get_photo。

希望能帮助某人。