mirror of
https://github.com/jomjol/AI-on-the-edge-device.git
synced 2025-12-07 03:56:57 +03:00
67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
// Workaround - bug in cam library - enable bits are set without using bitwise OR logic -> only latest enable setting is used
|
|
// Reference: https://esp32.com/viewtopic.php?f=19&t=14376#p93178
|
|
/* The memory structure is as follows for
|
|
byte_0 = enable_bits
|
|
byte_0->bit0 = enable saturation and hue --> OK
|
|
byte_0->bit1 = enable saturation --> OK
|
|
byte_0->bit2 = enable brightness and contrast --> OK
|
|
byte_0->bit3 = enable green -> blue spitial effect (Antique and blunish and greenish and reddish and b&w) enable
|
|
byte_0->bit4 = anable gray -> red spitial effect (Antique and blunish and greenish and reddish and b&w) enable
|
|
byte_0->bit5 = remove (UV) in YUV color system
|
|
byte_0->bit6 = enable negative
|
|
byte_0->bit7 = remove (Y) in YUV color system
|
|
byte_1 = saturation1 0-255 --> ?
|
|
byte_2 = hue 0-255 --> OK
|
|
byte_3 = saturation2 0-255 --> OK
|
|
byte_4 = reenter saturation2 in documents --> ?
|
|
byte_5 = spital effect green -> blue 0-255 --> ?
|
|
byte_6 = spital effect gray -> red 0-255 --> ?
|
|
byte_7 = contrast lower byte 0-255 --> OK
|
|
byte_8 = contrast higher byte 0-255 --> OK
|
|
byte_9 = brightness 0-255 --> OK
|
|
byte_10 = if byte_10==4 contrast effective --> ?
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include "esp_camera.h"
|
|
#include "ov2640_specialEffect.h"
|
|
|
|
static const uint8_t special_effects_regs[8][5] = {
|
|
{0x7C, 0x7D, 0x7C, 0x7D, 0x7D},
|
|
{0x00, 0X00, 0x05, 0X80, 0X80}, /* no effect */
|
|
{0x00, 0X40, 0x05, 0X80, 0X80}, /* negative */
|
|
{0x00, 0X18, 0x05, 0X80, 0X80}, /* black and white */
|
|
{0x00, 0X18, 0x05, 0X40, 0XC0}, /* reddish */
|
|
{0x00, 0X18, 0x05, 0X40, 0X40}, /* greenish */
|
|
{0x00, 0X18, 0x05, 0XA0, 0X40}, /* blue */
|
|
{0x00, 0X18, 0x05, 0X40, 0XA6}, /* retro */
|
|
};
|
|
|
|
int ov2640_set_special_effect(sensor_t *sensor, int effect)
|
|
{
|
|
int ret = 0;
|
|
effect++;
|
|
|
|
if (effect <= 0 || effect > 7)
|
|
{
|
|
effect = 1;
|
|
}
|
|
|
|
sensor->status.special_effect = effect - 1;
|
|
|
|
int registerValue = 0x06; // enable saturation, contrast, brightness
|
|
registerValue |= special_effects_regs[effect][1];
|
|
|
|
// sensor->set_reg(sensor, int reg, int mask, int value)
|
|
sensor->set_reg(sensor, 0xFF, 0x01, 0x00); // Select DSP bank
|
|
sensor->set_reg(sensor, special_effects_regs[0][0], 0xFF, 0x00);
|
|
sensor->set_reg(sensor, special_effects_regs[0][1], 0x5E, registerValue);
|
|
|
|
for (int i = 2; i < 5; i++)
|
|
{
|
|
sensor->set_reg(sensor, special_effects_regs[0][i], 0xFF, special_effects_regs[effect][i]);
|
|
}
|
|
|
|
return ret;
|
|
}
|