kopia lustrzana https://github.com/alanesq/esp32cam-demo
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Alan
GitHub
rodzic
7de05783dc
commit
1d43654af2
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@ -314,6 +314,72 @@ bool setupCameraHardware() {
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// ******************************************************************************************************************
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// ----------------------------------------------------------------
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// -Change camera settings
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// ----------------------------------------------------------------
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// Adjust image properties (e.g. brightness)
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// Defaults to auto adjustments if exposure and gain are both set to zero
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// Note: White balance is disabled when manual settings applied to assist when using RGB data to compare colours
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// Returns TRUE if successful
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bool cameraImageSettings() {
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sensor_t *s = esp_camera_sensor_get();
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if (s == NULL) {
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Serial.println("Error: problem getting camera sensor settings");
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return 0;
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}
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if (cameraImageExposure == 0 && cameraImageGain == 0) {
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// enable auto adjust
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s->set_gain_ctrl(s, 1); // auto gain on
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s->set_exposure_ctrl(s, 1); // auto exposure on
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s->set_awb_gain(s, 1); // Auto White Balance enable (0 or 1)
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} else {
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// Apply manual settings
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s->set_gain_ctrl(s, 0); // auto gain off
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s->set_awb_gain(s, 0); // Auto White Balance enable (0 or 1)
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s->set_exposure_ctrl(s, 0); // auto exposure off
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s->set_agc_gain(s, cameraImageGain); // set gain manually (0 - 30)
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s->set_aec_value(s, cameraImageExposure); // set exposure manually (0-1200)
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}
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return 1;
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} // cameraImageSettings
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// // More camera settings available:
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// // If you enable gain_ctrl or exposure_ctrl it will prevent a lot of the other settings having any effect
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// // more info on settings here: https://randomnerdtutorials.com/esp32-cam-ov2640-camera-settings/
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// s->set_gain_ctrl(s, 0); // auto gain off (1 or 0)
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// s->set_exposure_ctrl(s, 0); // auto exposure off (1 or 0)
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// s->set_agc_gain(s, cameraImageGain); // set gain manually (0 - 30)
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// s->set_aec_value(s, cameraImageExposure); // set exposure manually (0-1200)
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// s->set_vflip(s, cameraImageInvert); // Invert image (0 or 1)
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// s->set_quality(s, 10); // (0 - 63)
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// s->set_gainceiling(s, GAINCEILING_32X); // Image gain (GAINCEILING_x2, x4, x8, x16, x32, x64 or x128)
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// s->set_brightness(s, cameraImageBrightness); // (-2 to 2) - set brightness
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// s->set_lenc(s, 1); // lens correction? (1 or 0)
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// s->set_saturation(s, 0); // (-2 to 2)
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// s->set_contrast(s, cameraImageContrast); // (-2 to 2)
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// s->set_sharpness(s, 0); // (-2 to 2)
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// s->set_hmirror(s, 0); // (0 or 1) flip horizontally
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// s->set_colorbar(s, 0); // (0 or 1) - show a testcard
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// s->set_special_effect(s, 0); // (0 to 6?) apply special effect
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// s->set_whitebal(s, 0); // white balance enable (0 or 1)
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// s->set_awb_gain(s, 1); // Auto White Balance enable (0 or 1)
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// s->set_wb_mode(s, 0); // 0 to 4 - if awb_gain enabled (0 - Auto, 1 - Sunny, 2 - Cloudy, 3 - Office, 4 - Home)
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// s->set_dcw(s, 0); // downsize enable? (1 or 0)?
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// s->set_raw_gma(s, 1); // (1 or 0)
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// s->set_aec2(s, 0); // automatic exposure sensor? (0 or 1)
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// s->set_ae_level(s, 0); // auto exposure levels (-2 to 2)
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// s->set_bpc(s, 0); // black pixel correction
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// s->set_wpc(s, 0); // white pixel correction
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// ******************************************************************************************************************
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@ -322,7 +388,6 @@ bool setupCameraHardware() {
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// ----------------------------------------------------------------
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// flash the indicator led 'reps' number of times
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void flashLED(int reps) {
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for(int x=0; x < reps; x++) {
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@ -656,7 +721,7 @@ void handleNotFound() {
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// ----------------------------------------------------------------
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// Access image data as RGB - i.e. http://x.x.x.x/rgb
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// ----------------------------------------------------------------
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// insparation from: https://github.com/Makerfabs/Project_Touch-Screen-Camera/blob/master/Camera_v2/Camera_v2.ino
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// Info. from: https://github.com/Makerfabs/Project_Touch-Screen-Camera/blob/master/Camera_v2/Camera_v2.ino
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// note: I do not know how high resolution you can go and not run out of memory
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void readRGBImage() {
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@ -671,17 +736,17 @@ void readRGBImage() {
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if (!fb) tReply+=" -Error capturing image from camera- ";
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// allocate memory to store rgb data in psram
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if (!psramFound()) tReply+=" -Error - no psram found- ";
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if (!psramFound()) tReply+=" -Error no psram found- ";
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void *ptrVal = NULL;
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uint32_t ARRAY_LENGTH = I_WIDTH * I_HEIGHT * 3; // pixels in the image image x 3
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uint32_t ARRAY_LENGTH = I_WIDTH * I_HEIGHT * 3; // number of pixels in the jpg image x 3
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ptrVal = heap_caps_malloc(ARRAY_LENGTH, MALLOC_CAP_SPIRAM);
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uint8_t *rgb = (uint8_t *)ptrVal;
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// convert jpg to rgb (store in array called 'rgb')
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// convert jpg to rgb (store in an array 'rgb')
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bool jpeg_converted = fmt2rgb888(fb->buf, fb->len, PIXFORMAT_JPEG, rgb);
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if (!jpeg_converted) tReply+=" -Error converting image to RGB- ";
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// display some of the result
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// display some of the resulting data
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for (uint32_t i = 0; i < resultsToShow; i++) {
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// // x and y coordinate of the pixel
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// uint16_t x = i % I_WIDTH;
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@ -692,11 +757,11 @@ void readRGBImage() {
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tReply+= String(rgb[i]) + ",";
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}
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// find average values for each colour
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// find the average values for each colour over entire image
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uint32_t aRed = 0;
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uint32_t aGreen = 0;
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uint32_t aBlue = 0;
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for (uint32_t i = 0; i < (ARRAY_LENGTH - 2); i+=3) {
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for (uint32_t i = 0; i < (ARRAY_LENGTH - 2); i+=3) { // go through all data and add up totals
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aBlue+=rgb[i];
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aGreen+=rgb[i+1];
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aRed+=rgb[i+2];
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@ -715,7 +780,7 @@ void readRGBImage() {
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Serial.println(tReply);
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server.send ( 404, "text/plain", tReply);
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}
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} // readRGBImage
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// ******************************************************************************************************************
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@ -724,7 +789,7 @@ void readRGBImage() {
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// ----------------------------------------------------------------
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// -stream requested i.e. http://x.x.x.x/stream
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// ----------------------------------------------------------------
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// Sends cam stream - thanks to Uwe Gerlach for the code showing how to do this
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// Sends cam stream - thanks to Uwe Gerlach for the code showing me how to do this
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void handleStream(){
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@ -777,68 +842,5 @@ void handleStream(){
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} // handleStream
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// ******************************************************************************************************************
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// ----------------------------------------------------------------
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// -Change camera settings
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// ----------------------------------------------------------------
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// Returns TRUE is successful
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// white balance disabled to assist when using RGB to compare colours
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bool cameraImageSettings() {
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sensor_t *s = esp_camera_sensor_get();
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if (s == NULL) {
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Serial.println("Error: problem getting camera sensor settings");
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return 0;
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}
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if (cameraImageExposure == 0 && cameraImageGain == 0) {
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// enable auto adjust
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s->set_gain_ctrl(s, 1); // auto gain on
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s->set_exposure_ctrl(s, 1); // auto exposure on
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s->set_awb_gain(s, 1); // Auto White Balance enable (0 or 1)
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} else {
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// Apply manual settings
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s->set_gain_ctrl(s, 0); // auto gain off
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s->set_awb_gain(s, 0); // Auto White Balance enable (0 or 1)
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s->set_exposure_ctrl(s, 0); // auto exposure off
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s->set_agc_gain(s, cameraImageGain); // set gain manually (0 - 30)
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s->set_aec_value(s, cameraImageExposure); // set exposure manually (0-1200)
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}
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return 1;
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} // cameraImageSettings
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// // More camera settings available:
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// // If you enable gain_ctrl or exposure_ctrl it will prevent a lot of the other settings having any effect
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// // more info on settings here: https://randomnerdtutorials.com/esp32-cam-ov2640-camera-settings/
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// s->set_gain_ctrl(s, 0); // auto gain off (1 or 0)
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// s->set_exposure_ctrl(s, 0); // auto exposure off (1 or 0)
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// s->set_agc_gain(s, cameraImageGain); // set gain manually (0 - 30)
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// s->set_aec_value(s, cameraImageExposure); // set exposure manually (0-1200)
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// s->set_vflip(s, cameraImageInvert); // Invert image (0 or 1)
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// s->set_quality(s, 10); // (0 - 63)
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// s->set_gainceiling(s, GAINCEILING_32X); // Image gain (GAINCEILING_x2, x4, x8, x16, x32, x64 or x128)
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// s->set_brightness(s, cameraImageBrightness); // (-2 to 2) - set brightness
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// s->set_lenc(s, 1); // lens correction? (1 or 0)
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// s->set_saturation(s, 0); // (-2 to 2)
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// s->set_contrast(s, cameraImageContrast); // (-2 to 2)
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// s->set_sharpness(s, 0); // (-2 to 2)
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// s->set_hmirror(s, 0); // (0 or 1) flip horizontally
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// s->set_colorbar(s, 0); // (0 or 1) - show a testcard
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// s->set_special_effect(s, 0); // (0 to 6?) apply special effect
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// s->set_whitebal(s, 0); // white balance enable (0 or 1)
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// s->set_awb_gain(s, 1); // Auto White Balance enable (0 or 1)
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// s->set_wb_mode(s, 0); // 0 to 4 - if awb_gain enabled (0 - Auto, 1 - Sunny, 2 - Cloudy, 3 - Office, 4 - Home)
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// s->set_dcw(s, 0); // downsize enable? (1 or 0)?
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// s->set_raw_gma(s, 1); // (1 or 0)
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// s->set_aec2(s, 0); // automatic exposure sensor? (0 or 1)
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// s->set_ae_level(s, 0); // auto exposure levels (-2 to 2)
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// s->set_bpc(s, 0); // black pixel correction
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// s->set_wpc(s, 0); // white pixel correction
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// ******************************************************************************************************************
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// end
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