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feat(isp): add gamma correction driver to ISP

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This commit is contained in:
Song Ruo Jing
2024-07-22 22:08:02 +08:00
parent 2884ce0eac
commit f2d131aae4
12 changed files with 473 additions and 539 deletions
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19
examples/peripherals/isp/multi_pipelines/main/isp_dsi_main.c
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@@ -6,6 +6,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "freertos/FreeRTOS.h"
#include "esp_log.h"
#include "esp_heap_caps.h"
@@ -16,6 +17,8 @@
#include "esp_cache.h"
#include "driver/i2c_master.h"
#include "driver/isp.h"
#include "driver/isp_gamma.h"
#include "driver/isp_sharpen.h"
#include "isp_af_scheme_sa.h"
#include "esp_cam_ctlr_csi.h"
#include "esp_cam_ctlr.h"
@@ -175,6 +178,15 @@ static void af_task(void *arg)
}
}
/*---------------------------------------------------------------
Gamma Correction
---------------------------------------------------------------*/
static uint32_t s_gamma_correction_curve(uint32_t x)
{
return pow((double)x / 256, 0.7) * 256;
}
void app_main(void)
{
esp_err_t ret = ESP_FAIL;
@@ -295,6 +307,13 @@ void app_main(void)
ESP_ERROR_CHECK(esp_isp_bf_configure(isp_proc, &bf_config));
ESP_ERROR_CHECK(esp_isp_bf_enable(isp_proc));
isp_gamma_curve_points_t pts = {};
ESP_ERROR_CHECK(esp_isp_gamma_fill_curve_points(s_gamma_correction_curve, &pts));
ESP_ERROR_CHECK(esp_isp_gamma_configure(isp_proc, COLOR_COMPONENT_R, &pts));
ESP_ERROR_CHECK(esp_isp_gamma_configure(isp_proc, COLOR_COMPONENT_G, &pts));
ESP_ERROR_CHECK(esp_isp_gamma_configure(isp_proc, COLOR_COMPONENT_B, &pts));
ESP_ERROR_CHECK(esp_isp_gamma_enable(isp_proc));
esp_isp_sharpen_config_t sharpen_config = {
.h_freq_coeff = {
.integer = 2,