eessppeelllloo/veejay
1
0
Fork 0
mirror of https://github.com/game-stop/veejay.git synced 2025-12-15 12:20:03 +01:00
Code Issues Packages Projects Releases Wiki Activity

add gamma and alpha parameters to black white by threshold

Browse Source 
rename black white by threshold to black white mask by threshold
This commit is contained in:
niels
2015-11-04 00:01:59 +01:00
parent 10f9616da3
commit 41e97febba
4 changed files with 104 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files

118
veejay-current/veejay-server/libvje/effects/bwselect.c
View File

@@ -26,46 +26,130 @@
vj_effect *bwselect_init(int w, int h)
{
vj_effect *ve = (vj_effect *) vj_calloc(sizeof(vj_effect));
ve->num_params = 2;
ve->num_params = 4;
ve->defaults = (int *) vj_calloc(sizeof(int) * ve->num_params); /* default values */
ve->limits[0] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* min */
ve->limits[1] = (int *) vj_calloc(sizeof(int) * ve->num_params); /* max */
ve->defaults[0] = 16;
ve->defaults[1] = 235;
ve->parallel = 1;
ve->defaults[2] = 400;
ve->defaults[3] = 0;
ve->limits[0][0] = 0;
ve->limits[1][0] = 255;
ve->limits[0][1] = 0;
ve->limits[0][1] = 0;
ve->limits[1][1] = 255;
ve->description = "Black and White by Threshold";
ve->sub_format = -1;
ve->limits[0][2] = 0;
ve->limits[1][2] = 1000;
ve->limits[0][3] = 0;
ve->limits[1][3] = 1;
ve->description = "Black and White Mask by Threshold";
ve->sub_format = -1;
ve->extra_frame = 0;
ve->has_user =0 ;
ve->param_description = vje_build_param_list( ve->num_params, "Min threshold", "Max threshold" );
ve->has_user =0;
ve->parallel = 1;
ve->param_description = vje_build_param_list( ve->num_params, "Min Threshold", "Max Threshold", "Gamma", "Alpha" );
return ve;
}
void bwselect_apply(VJFrame *frame, int width, int height, int min_threshold, int max_threshold) {
static int last_gamma = 0;
static uint8_t table[256];
static void gamma_setup(int width, int height, double gamma_value)
{
int i;
double val;
for (i = 0; i < 256; i++) {
val = i / 256.0;
val = pow(val, gamma_value);
val = 256.0 * val;
table[i] = val;
}
}
void bwselect_apply(VJFrame *frame, int width, int height, int min_threshold, int max_threshold, int gamma, int mode) {
int r,c;
const int len = frame->len;
uint8_t *Y = frame->data[0];
uint8_t *Cb = frame->data[1];
uint8_t *Cr = frame->data[2];
for(r=0; r < len; r+=width) {
for(c=0; c < width; c++) {
uint8_t p = Y[r+c];
if( p > min_threshold && p < max_threshold) {
Y[r+c] = pixel_Y_hi_;
if( gamma == 0 )
{
if( mode == 0 ) {
for(r=0; r < len; r+=width) {
for(c=0; c < width; c++) {
uint8_t p = Y[r+c];
if( p > min_threshold && p < max_threshold) {
Y[r+c] = pixel_Y_hi_;
}
else {
Y[r+c] = pixel_Y_lo_;
}
}
}
else {
Y[r+c] = pixel_Y_lo_;
veejay_memset(Cb, 128, (frame->ssm ? frame->len : frame->uv_len));
veejay_memset(Cr, 128, (frame->ssm ? frame->len : frame->uv_len));
}
else {
uint8_t *aA = frame->data[3];
for(r=0; r < len; r+=width) {
for(c=0; c < width; c++) {
uint8_t p = Y[r+c];
if( p > min_threshold && p < max_threshold) {
aA[r+c] = 0xff;
}
else {
aA[r+c] = 0;
}
}
}
}
}
else
{
if( gamma != last_gamma ) {
gamma_setup( width,height,(double) gamma / 100.0 );
last_gamma = gamma;
}
if( mode == 0 ) {
for(r=0; r < len; r+=width) {
for(c=0; c < width; c++) {
uint8_t p = table[ Y[r+c] ];
if( p > min_threshold && p < max_threshold) {
Y[r+c] = pixel_Y_hi_;
}
else {
Y[r+c] = pixel_Y_lo_;
}
}
}
veejay_memset(Cb, 128, (frame->ssm ? frame->len : frame->uv_len));
veejay_memset(Cr, 128, (frame->ssm ? frame->len : frame->uv_len));
}
else {
uint8_t *aA = frame->data[3];
for(r=0; r < len; r+=width) {
for(c=0; c < width; c++) {
uint8_t p = table[ Y[r+c] ];
if( p > min_threshold && p < max_threshold) {
aA[r+c] = 0xff;
}
else {
aA[r+c] = 0;
}
}
}
}
}
veejay_memset(Cb, 128, (frame->ssm ? frame->len : frame->uv_len));
veejay_memset(Cr, 128, (frame->ssm ? frame->len : frame->uv_len));
}
void bwselect_free(){}

3
veejay-current/veejay-server/libvje/effects/bwselect.h
View File

@@ -25,7 +25,6 @@
#include <stdint.h>
vj_effect *bwselect_init();
void bwselect_apply(VJFrame *frame, int width, int height, int min_threshold,
int max_threshold);
void bwselect_apply(VJFrame *frame, int width, int height, int min_threshold,int max_threshold, int mode, int gamma);
void bwselect_free();
#endif

2
veejay-current/veejay-server/libvje/internal.h
View File

@@ -448,7 +448,7 @@ extern void greyselect_apply(VJFrame *frame, int w, int h, int angle, int r, int
extern void isolate_apply(VJFrame *frame, int w, int h, int angle, int r, int g, int b,
int opacity);
extern void bwselect_apply(VJFrame *frame, int w, int h, int a , int b);
extern void bwselect_apply(VJFrame *frame, int w, int h, int a , int b, int c, int g);
extern void complexinvert_apply(VJFrame *frame, int w, int h, int angle, int r, int g, int b, int i_noise);

2
veejay-current/veejay-server/libvje/vj-effman.c
View File

@@ -350,7 +350,7 @@ void vj_effman_apply_image_effect(
arg[0]);
break;
case VJ_IMAGE_EFFECT_BWSELECT:
bwselect_apply(frames[0], frames[0]->width, frames[0]->height, arg[0], arg[1]);
bwselect_apply(frames[0], frames[0]->width, frames[0]->height, arg[0], arg[1], arg[2], arg[3]);
break;
case VJ_IMAGE_EFFECT_GREYSELECT:
greyselect_apply(frames[0], frames[0]->width, frames[0]->height,arg[0],arg[1],arg[2],arg[3],arg[4]);