fruchti/inverse_thermal_camera
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Make actually decent images

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This commit is contained in:
fruchti 2018-08-23 13:27:08 +02:00
parent 804a11cb10
commit 3c84665f50
3 changed files with 10 additions and 26 deletions
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2
build-number.txt
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@ -1 +1 @@
444 464

5
src/main.c
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@ -19,11 +19,6 @@ int main(void)
LTP1245_FeedPaper(2); LTP1245_FeedPaper(2);
strcpy(buff, "Line count: ");
extern int LineCount;
itoa(LineCount, buff + strlen(buff), 10);
Print_Text(buff, &Hannover_Messe_Serif_26);
LTP1245_FeedPaper(10); LTP1245_FeedPaper(10);
// LTP1245_FeedPaper(10); // LTP1245_FeedPaper(10);
// LTP1245_Cut(); // LTP1245_Cut();

29
src/ov7670.c
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@ -150,8 +150,7 @@
uint8_t ImageBuffer[CAMERA_IMAGE_WIDTH * CAMERA_IMAGE_HEIGHT / 8]; uint8_t ImageBuffer[CAMERA_IMAGE_WIDTH * CAMERA_IMAGE_HEIGHT / 8];
static volatile int CurrentLine = 0; static volatile int CurrentLine = 0;
uint8_t LineBuffer1[CAMERA_IMAGE_WIDTH + 40]; uint8_t LineBuffer[CAMERA_IMAGE_WIDTH + 40];
uint8_t LineBuffer2[CAMERA_IMAGE_WIDTH + 40];
int LineCount = 0; int LineCount = 0;
static int FrameCount = 0; static int FrameCount = 0;
volatile int Camera_Captured = 0; volatile int Camera_Captured = 0;
@ -265,7 +264,7 @@ void Camera_Init(void)
// pixel clock and should trigger DMA transfers // pixel clock and should trigger DMA transfers
TIM3->PSC = 0; TIM3->PSC = 0;
TIM3->ARR = 1; TIM3->ARR = 1;
TIM3->CCMR1 = TIM_CCMR1_CC2S_0 | TIM_CCMR1_CC1S_0 | TIM_CCMR1_IC1PSC_0; TIM3->CCMR1 = TIM_CCMR1_CC2S_0 | TIM_CCMR1_CC1S_0 | TIM_CCMR1_IC1PSC_1;
TIM3->CCER = TIM_CCER_CC2P | TIM_CCER_CC2E | TIM_CCER_CC1E | TIM_CCER_CC1P; TIM3->CCER = TIM_CCER_CC2P | TIM_CCER_CC2E | TIM_CCER_CC1E | TIM_CCER_CC1P;
TIM3->DIER = TIM_DIER_CC2IE; TIM3->DIER = TIM_DIER_CC2IE;
TIM3->CR1 = TIM_CR1_CEN; TIM3->CR1 = TIM_CR1_CEN;
@ -332,39 +331,29 @@ void TIM3_IRQHandler(void)
TIM3->DIER &= ~TIM_DIER_CC1DE; TIM3->DIER &= ~TIM_DIER_CC1DE;
TIM3->SR &= ~TIM_SR_CC1IF; TIM3->SR &= ~TIM_SR_CC1IF;
uint8_t *filledbuffer;
DMA1_Channel6->CCR = 0; DMA1_Channel6->CCR = 0;
DMA1_Channel6->CNDTR = sizeof(LineBuffer1); DMA1_Channel6->CNDTR = sizeof(LineBuffer);
if(CurrentLine & 1) DMA1_Channel6->CMAR = (uint32_t)LineBuffer;
{
DMA1_Channel6->CMAR = (uint32_t)LineBuffer1;
filledbuffer = LineBuffer2;
}
else
{
DMA1_Channel6->CMAR = (uint32_t)LineBuffer2;
filledbuffer = LineBuffer1;
}
DMA1_Channel6->CCR = DMA_CCR_PL | DMA_CCR_MINC | DMA_CCR_EN; DMA1_Channel6->CCR = DMA_CCR_PL | DMA_CCR_MINC | DMA_CCR_EN;
TIM3->DIER |= TIM_DIER_CC1DE; TIM3->DIER |= TIM_DIER_CC1DE;
if(!Camera_Captured) if(!Camera_Captured && (~CurrentLine & 1))
{ {
int error = 0; int error = 0;
for(int i = 0; i < CAMERA_IMAGE_WIDTH; i++) for(int i = 0; i < CAMERA_IMAGE_WIDTH; i++)
{ {
int pixel = filledbuffer[i + 15] + error; int pixel = LineBuffer[i + 15] + error;
int line = CurrentLine / 2;
if(pixel < 127) if(pixel < 127)
{ {
error = pixel; error = pixel;
ImageBuffer[(CurrentLine * CAMERA_IMAGE_WIDTH + i) / 8] |= ImageBuffer[(line * CAMERA_IMAGE_WIDTH + i) / 8] |=
0x80 >> (i % 8); 0x80 >> (i % 8);
} }
else else
{ {
error = pixel - 255; error = pixel - 255;
ImageBuffer[(CurrentLine * CAMERA_IMAGE_WIDTH + i) / 8] &= ImageBuffer[(line * CAMERA_IMAGE_WIDTH + i) / 8] &=
~(0x80 >> (i % 8)); ~(0x80 >> (i % 8));
} }
} }