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Ephoto: Make Ephoto's blur a nice feaux guassian algo, Ephoto's sharpen an unsharp mask, and add dithering(needs work)

This commit is contained in:
Stephen Houston 2016-06-20 19:11:54 -05:00
parent 4ef7efdc4c
commit ab8edacd0d
4 changed files with 489 additions and 123 deletions
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1
src/bin/ephoto.h
View File

@ -143,6 +143,7 @@ void ephoto_red_eye_add(Ephoto *ephoto, Evas_Object *main, Evas_Object *parent,
Evas_Object *image);
void ephoto_filter_blur(Evas_Object *main, Evas_Object *image);
void ephoto_filter_sharpen(Evas_Object *main, Evas_Object *image);
void ephoto_filter_dither(Evas_Object *main, Evas_Object *image);
void ephoto_filter_black_and_white(Evas_Object *main, Evas_Object *image);
void ephoto_filter_old_photo(Evas_Object *main, Evas_Object *image);
void ephoto_filter_painting(Evas_Object *main, Evas_Object *image);

583
src/bin/ephoto_filters.c
View File

@ -6,6 +6,7 @@ typedef struct _Ephoto_Filter Ephoto_Filter;
enum _Ephoto_Image_Filter
{
EPHOTO_IMAGE_FILTER_BLUR,
EPHOTO_IMAGE_FILTER_DITHER,
EPHOTO_IMAGE_FILTER_EQUALIZE,
EPHOTO_IMAGE_FILTER_GRAYSCALE,
EPHOTO_IMAGE_FILTER_INVERT,
@ -28,6 +29,8 @@ struct _Ephoto_Filter
Evas_Coord w;
Evas_Coord h;
int pos;
int blur_posx;
int blur_posy;
int rad;
int qpos;
int qcount;
@ -36,11 +39,13 @@ struct _Ephoto_Filter
unsigned int *cdf;
unsigned int *im_data;
unsigned int *im_data_new;
unsigned int *im_data_orig;
unsigned int *im_data_two;
};
static Eina_Bool _blur(void *data);
static Eina_Bool _sharpen(void *data);
static Eina_Bool _dither(void *data);
static Eina_Bool _grayscale(void *data);
static Eina_Bool _sepia(void *data);
static Eina_Bool _negative(void *data);
@ -68,9 +73,12 @@ _initialize_filter(Ephoto_Image_Filter filter,
ef->im_data = memcpy(ef->im_data, im_data, sizeof(unsigned int) * w * h);
ef->im_data_new = malloc(sizeof(unsigned int) * w * h);
ef->im_data_two = NULL;
ef->im_data_orig = NULL;
ef->rad = 0;
ef->drad = 0.0;
ef->pos = 0;
ef->blur_posx = 0;
ef->blur_posy = 0;
ef->w = w;
ef->h = h;
ef->qpos = 0;
@ -175,6 +183,8 @@ _idler_finishing_cb(Ephoto_Filter *ef, Eina_Bool im_data_two)
free(ef->im_data);
if (ef->im_data_two)
free(ef->im_data_two);
if (ef->im_data_orig)
free(ef->im_data_orig);
free(ef);
}
else
@ -230,111 +240,330 @@ _idler_finishing_cb(Ephoto_Filter *ef, Eina_Bool im_data_two)
free(ef->im_data);
if (ef->im_data_two)
free(ef->im_data_two);
if (ef->im_data_orig)
free(ef->im_data_orig);
free(ef);
}
}
}
static void
_blur_vertical(Ephoto_Filter *ef, double rad)
{
Evas_Coord y, w, h;
int i, at, rt, gt, bt, passes = 0;
unsigned int *as, *rs, *gs, *bs;
double iarr;
w = ef->w;
h = ef->h;
as = malloc(sizeof(unsigned int) * w * h);
rs = malloc(sizeof(unsigned int) * w * h);
gs = malloc(sizeof(unsigned int) * w * h);
bs = malloc(sizeof(unsigned int) * w * h);
for (i = 0; i < w * h; i++)
{
bs[i] = ef->im_data[i] & 0xff;
gs[i] = (ef->im_data[i] >> 8) & 0xff;
rs[i] = (ef->im_data[i] >> 16) & 0xff;
as[i] = (ef->im_data[i] >> 24) & 0xff;
}
iarr = (double) 1 / (rad + rad + 1);
for (y = ef->blur_posy; y < h; y++)
{
int t, l, rr;
int fr, fg, fb, fa;
int lvr, lvg, lvb, lva;
int valr, valg, valb, vala;
t = y * w;
l = t;
rr = t + rad;
fb = bs[t];
fg = gs[t];
fr = rs[t];
fa = as[t];
lvb = bs[t + w - 1];
lvg = gs[t + w - 1];
lvr = rs[t + w - 1];
lva = as[t + w - 1];
valb = (rad + 1) * fb;
valg = (rad + 1) * fg;
valr = (rad + 1) * fr;
vala = (rad + 1) * fa;
for (i = 0; i < rad; i++)
{
valb += bs[t + i];
valg += gs[t + i];
valr += rs[t + i];
vala += as[t + i];
}
for (i = 0; i <= rad; i++)
{
int r = rr++;
valb += bs[r] - fb;
valg += gs[r] - fg;
valr += rs[r] - fr;
vala += as[r] - fa;
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data_new[t++] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
}
for (i = rad + 1; i < w - rad; i++)
{
int r = rr++;
int ll = l++;
valb += bs[r] - bs[ll];
valg += gs[r] - gs[ll];
valr += rs[r] - rs[ll];
vala += as[r] - as[ll];
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data_new[t++] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
}
for (i = w - rad; i < w; i++)
{
int ll = l++;
valb += lvb - bs[ll];
valg += lvg - gs[ll];
valr += lvr - rs[ll];
vala += lva - as[ll];
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data_new[t++] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
}
ef->blur_posy = y;
passes++;
if (passes == 500)
{
ef->blur_posy = y++;
break;
}
}
free(bs);
free(gs);
free(rs);
free(as);
}
static void
_blur_horizontal(Ephoto_Filter *ef, double rad)
{
Evas_Coord x, w, h;
int i, at, rt, gt, bt, passes = 0;
unsigned int *as, *rs, *gs, *bs;
double iarr;
w = ef->w;
h = ef->h;
as = malloc(sizeof(unsigned int) * w * h);
rs = malloc(sizeof(unsigned int) * w * h);
gs = malloc(sizeof(unsigned int) * w * h);
bs = malloc(sizeof(unsigned int) * w * h);
for (i = 0; i < w * h; i++)
{
bs[i] = ef->im_data_new[i] & 0xff;
gs[i] = (ef->im_data_new[i] >> 8) & 0xff;
rs[i] = (ef->im_data_new[i] >> 16) & 0xff;
as[i] = (ef->im_data_new[i] >> 24) & 0xff;
}
iarr = (double)1 / (rad + rad + 1);
for (x = ef->blur_posx; x < w; x++)
{
int t, l, rr;
int fr, fg, fb, fa;
int lvr, lvg, lvb, lva;
int valr, valg, valb, vala;
t = x;
l = t;
rr = t + rad * w;
fb = bs[t];
fg = gs[t];
fr = rs[t];
fa = as[t];
lvb = bs[t + w * (h - 1)];
lvg = gs[t + w * (h - 1)];
lvr = rs[t + w * (h - 1)];
lva = as[t + w * (h - 1)];
valb = (rad + 1) * fb;
valg = (rad + 1) * fg;
valr = (rad + 1) * fr;
vala = (rad + 1) * fa;
for (i = 0; i < rad; i++)
{
valb += bs[t + i * w];
valg += gs[t + i * w];
valr += rs[t + i * w];
vala += as[t + i * w];
}
for (i = 0; i <= rad; i++)
{
valb += bs[rr] - fb;
valg += gs[rr] - fg;
valr += rs[rr] - fr;
vala += as[rr] - fa;
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data[t] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
rr += w;
t += w;
}
for (i = rad + 1; i < h - rad; i++)
{
valb += bs[rr] - bs[l];
valg += gs[rr] - gs[l];
valr += rs[rr] - rs[l];
vala += as[rr] - as[l];;
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data[t] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
l += w;
rr += w;
t += w;
}
for (i = h - rad; i < h; i++)
{
valb += lvb - bs[l];
valg += lvg - gs[l];
valr += lvr - rs[l];
vala += lva - as[l];
bt = (int) round(valb * iarr);
gt = (int) round(valg * iarr);
rt = (int) round(valr * iarr);
at = (int) round(vala * iarr);
bt = _normalize_color(bt);
gt = _normalize_color(gt);
rt = _normalize_color(rt);
at = _normalize_color(at);
ef->im_data[t] = (at << 24) | (rt << 16)
| (gt << 8) | bt;
l += w;
t += w;
}
ef->blur_posx = x;
passes++;
if (passes == 500)
{
ef->blur_posx = x++;
break;
}
}
free(bs);
free(gs);
free(rs);
free(as);
}
static Eina_Bool
_blur(void *data)
{
Ephoto_Filter *ef = data;
unsigned int *im_data, *p1, *p2;
Evas_Coord x, y, w, h, mx, my, mw, mh, mt, xx, yy;
int a, r, g, b, rad, passes = 0;
int *as, *rs, *gs, *bs;
Evas_Coord w, h;
int wl, wu, m, i;
unsigned int sizes[3];
double ideal, rad;
im_data = ef->im_data;
w = ef->w;
h = ef->h;
rad = ef->rad;
rad = ef->w * .001 + ef->rad;
as = malloc(sizeof(int) * w);
rs = malloc(sizeof(int) * w);
gs = malloc(sizeof(int) * w);
bs = malloc(sizeof(int) * w);
ideal = sqrt((12 * rad * rad / 3) + 1);
wl = floor(ideal);
if (wl % 2 == 0)
wl--;
wu = wl + 2;
ideal = (12 * rad * rad - 3 * wl * wl -
4 * 3 * wl - 3 * 3) / (-4 * wl - 4);
m = round(ideal);
for (y = ef->pos; y < h; y++)
for (i = ef->pos; i < 3; i++)
{
my = y - rad;
mh = (rad << 1) + 1;
if (my < 0)
{
mh += my;
my = 0;
}
if ((my + mh) > h)
{
mh = h - my;
}
p1 = ef->im_data_new + (y * w);
memset(as, 0, w * sizeof(int));
memset(rs, 0, w * sizeof(int));
memset(gs, 0, w * sizeof(int));
memset(bs, 0, w * sizeof(int));
if (i < m)
sizes[i] = wl;
else
sizes[i] = wu;
for (yy = 0; yy < mh; yy++)
rad = (sizes[i] - 1) / 2;
ef->im_data_new = memcpy(ef->im_data_new, ef->im_data,
sizeof(unsigned int) * w * h);
if (ef->blur_posy < ef->h - 1)
_blur_vertical(ef, rad);
if (ef->blur_posy == ef->h -1)
_blur_horizontal(ef, rad);
if (ef->blur_posx == ef->w - 1 &&
ef->blur_posy == ef->h - 1)
{
p2 = im_data + ((yy + my) * w);
for (x = 0; x < w; x++)
{
as[x] += (*p2 >> 24) & 0xff;
rs[x] += (*p2 >> 16) & 0xff;
gs[x] += (*p2 >> 8) & 0xff;
bs[x] += *p2 & 0xff;
p2++;
ef->pos = i+1;
ef->blur_posx = 0;
ef->blur_posy = 0;
}
}
if (w > ((rad << 1) + 1))
{
for (x = 0; x < w; x++)
{
a = 0;
r = 0;
g = 0;
b = 0;
mx = x - rad;
mw = (rad << 1) + 1;
if (mx < 0)
{
mw += mx;
mx = 0;
}
if ((mx + mw) > w)
{
mw = w - mx;
}
mt = mw * mh;
for (xx = mx; xx < (mw + mx); xx++)
{
a += as[xx];
r += rs[xx];
g += gs[xx];
b += bs[xx];
}
a = a / mt;
r = r / mt;
g = g / mt;
b = b / mt;
*p1 = (a << 24) | (r << 16) | (g << 8) | b;
p1++;
}
}
passes++;
if (passes == 500)
{
free(as);
free(rs);
free(gs);
free(bs);
ef->pos = y++;
return EINA_TRUE;
}
}
free(as);
free(rs);
free(gs);
free(bs);
_idler_finishing_cb(ef, EINA_FALSE);
return EINA_FALSE;
@ -344,48 +573,43 @@ static Eina_Bool
_sharpen(void *data)
{
Ephoto_Filter *ef = data;
unsigned int *p1, *p2;
unsigned int *p1, *p2, *p3;
int a, r, g, b, passes = 0;
int aa, rr, gg, bb;
int aaa, rrr, ggg, bbb;
Evas_Coord x, y, w, h;
w = ef->w;
h = ef->h;
for (y = ef->pos; y < (h - 1); y++)
for (y = ef->pos; y < h; y++)
{
p1 = ef->im_data + 1 + (y * w);
p2 = ef->im_data_new + 1 + (y * w);
p1 = ef->im_data + (y * w);
p2 = ef->im_data_orig + (y * w);
p3 = ef->im_data_new + (y * w);
for (x = 1; x < (w - 1); x++)
{
b = (int) ((p1[0]) & 0xff) * 5;
g = (int) ((p1[0] >> 8) & 0xff) * 5;
r = (int) ((p1[0] >> 16) & 0xff) * 5;
a = (int) ((p1[0] >> 24) & 0xff) * 5;
b -= (int) ((p1[-1]) & 0xff);
g -= (int) ((p1[-1] >> 8) & 0xff);
r -= (int) ((p1[-1] >> 16) & 0xff);
a -= (int) ((p1[-1] >> 24) & 0xff);
b -= (int) ((p1[1]) & 0xff);
g -= (int) ((p1[1] >> 8) & 0xff);
r -= (int) ((p1[1] >> 16) & 0xff);
a -= (int) ((p1[1] >> 24) & 0xff);
b -= (int) ((p1[-w]) & 0xff);
g -= (int) ((p1[-w] >> 8) & 0xff);
r -= (int) ((p1[-w] >> 16) & 0xff);
a -= (int) ((p1[-w] >> 24) & 0xff);
b -= (int) ((p1[-w]) & 0xff);
g -= (int) ((p1[-w] >> 8) & 0xff);
r -= (int) ((p1[-w] >> 16) & 0xff);
a -= (int) ((p1[-w] >> 24) & 0xff);
a = (a & ((~a) >> 16));
a = ((a | ((a & 256) - ((a & 256) >> 8))));
r = (r & ((~r) >> 16));
r = ((r | ((r & 256) - ((r & 256) >> 8))));
g = (g & ((~g) >> 16));
g = ((g | ((g & 256) - ((g & 256) >> 8))));
b = (b & ((~b) >> 16));
b = ((b | ((b & 256) - ((b & 256) >> 8))));
*p2 = (a << 24) | (r << 16) | (g << 8) | b;
b = (int) (*p1 & 0xff);
g = (int) ((*p1 >> 8) & 0xff);
r = (int) ((*p1 >> 16) & 0xff);
a = (int) ((*p1 >> 24) & 0xff);
bb = (int) (*p2 & 0xff);
gg = (int) ((*p2 >> 8) & 0xff);
rr = (int) ((*p2 >> 16) & 0xff);
aa = (int) ((*p2 >> 24) & 0xff);
bbb = (int) ((2 * bb) - b);
ggg = (int) ((2 * gg) - g);
rrr = (int) ((2 * rr) - r);
aaa = (int) ((2 * aa) - a);
bbb = _normalize_color(bbb);
ggg = _normalize_color(ggg);
rrr = _normalize_color(rrr);
aaa = _normalize_color(aaa);
*p3 = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
p3++;
p2++;
p1++;
}
@ -402,6 +626,110 @@ _sharpen(void *data)
return EINA_FALSE;
}
static Eina_Bool
_dither(void *data)
{
Ephoto_Filter *ef = data;
unsigned int *p1, *p2;
int a, r, g, b, passes = 0;
int aa, rr, gg, bb;
int aaa, rrr, ggg, bbb;
int erra, errr, errg, errb;
Evas_Coord x, y, w, h;
w = ef->w;
h = ef->h;
for (y = ef->pos; y < h; y++)
{
for (x = 1; x < w; x++)
{
p1 = ef->im_data + (y * w) + x;
p2 = ef->im_data_new + (y * w) + x;
b = (int) (*p1 & 0xff);
g = (int) ((*p1 >> 8) & 0xff);
r = (int) ((*p1 >> 16) & 0xff);
a = (int) ((*p1 >> 24) & 0xff);
bb = (b > 127) ? 255 : 0;
gg = (g > 127) ? 255 : 0;
rr = (r > 127) ? 255 : 0;
aa = (a > 127) ? 255 : 0;
*p2 = (aa << 24) | (rr << 16) | (gg << 8) | bb;
errb = b - bb;
errg = g - gg;
errr = r - rr;
erra = a - aa;
if ((x+1) < w)
{
p1 = ef->im_data + (y * w) + (x+1);
p2 = ef->im_data_new + (y * w) + (x+1);
bbb = (int) (*p1 & 0xff) + (7.0/16) * errb;
ggg = (int) ((*p1 >> 8) & 0xff) + (7.0/16) * errg;
rrr = (int) ((*p1 >> 16) & 0xff) + (7.0/16) * errr;
aaa = (int) ((*p1 >> 24) & 0xff) + (7.0/16) * erra;
bbb = _normalize_color(bbb);
ggg = _normalize_color(ggg);
rrr = _normalize_color(rrr);
aaa = _normalize_color(aaa);
*p2 = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
}
if ((y+1) < h)
{
p1 = ef->im_data + ((y+1) * w) + (x-1);
p2 = ef->im_data_new + ((y+1) * w) + (x-1);
bbb = (int) (*p1 & 0xff) + (3.0/16) * errb;
ggg = (int) ((*p1 >> 8) & 0xff) + (3.0/16) * errg;
rrr = (int) ((*p1 >> 16) & 0xff) + (3.0/16) * errr;
aaa = (int) ((*p1 >> 24) & 0xff) + (3.0/16) * erra;
bbb = _normalize_color(bbb);
ggg = _normalize_color(ggg);
rrr = _normalize_color(rrr);
aaa = _normalize_color(aaa);
*p2 = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
}
if ((y+1) < h)
{
p1 = ef->im_data + ((y+1) * w) + x;
p2 = ef->im_data_new + ((y+1) * w) + x;
bbb = (int) (*p1 & 0xff) + (5.0/16) * errb;
ggg = (int) ((*p1 >> 8) & 0xff) + (5.0/16) * errg;
rrr = (int) ((*p1 >> 16) & 0xff) + (5.0/16) * errr;
aaa = (int) ((*p1 >> 24) & 0xff) + (5.0/16) * erra;
bbb = _normalize_color(bbb);
ggg = _normalize_color(ggg);
rrr = _normalize_color(rrr);
aaa = _normalize_color(aaa);
*p2 = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
}
if ((y+1) < h && (x+1) < w)
{
p1 = ef->im_data + ((y+1) * w) + (x+1);
p2 = ef->im_data_new + ((y+1) * w) + (x+1);
bbb = (int) (*p1 & 0xff) + (1.0/16) * errb;
ggg = (int) ((*p1 >> 8) & 0xff) + (1.0/16) * errg;
rrr = (int) ((*p1 >> 16) & 0xff) + (1.0/16) * errr;
aaa = (int) ((*p1 >> 24) & 0xff) + (1.0/16) * erra;
bbb = _normalize_color(bbb);
ggg = _normalize_color(ggg);
rrr = _normalize_color(rrr);
aaa = _normalize_color(aaa);
*p2 = (aaa << 24) | (rrr << 16) | (ggg << 8) | bbb;
}
}
passes++;
if (passes == 500)
{
ef->pos = y++;
return EINA_TRUE;
}
}
_idler_finishing_cb(ef, EINA_FALSE);
return EINA_FALSE;
}
static Eina_Bool
_grayscale(void *data)
{
@ -780,10 +1108,27 @@ ephoto_filter_sharpen(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_SHARPEN,
main, image);
ef->im_data_orig = malloc(sizeof(unsigned int) * ef->w * ef->h);
ef->im_data_orig = memcpy(ef->im_data_orig, ef->im_data,
sizeof(unsigned int) * ef->w * ef->h);
ef->pos = 1;
ef->rad = 9;
ef->qcount = 1;
ef->qpos = 0;
ef->queue = eina_list_append(ef->queue, _sharpen);
ef->popup = _processing(main);
ef->idler = ecore_idler_add(_sharpen, ef);
ef->idler = ecore_idler_add(_blur, ef);
}
void
ephoto_filter_dither(Evas_Object *main, Evas_Object *image)
{
Ephoto_Filter *ef = _initialize_filter(EPHOTO_IMAGE_FILTER_DITHER,
main, image);
ef->popup = _processing(main);
ef->idler = ecore_idler_add(_dither, ef);
}
void

3
src/bin/ephoto_main.c
View File

@ -1167,12 +1167,15 @@ ephoto_entry_free_listener_del(Ephoto_Entry *entry, void (*cb) (void *data,
EINA_LIST_FOREACH(entry->free_listeners, l, fl)
{
if ((fl->cb == cb) && (fl->data == data))
{
if (eina_list_data_find(entry->free_listeners, l))
{
entry->free_listeners =
eina_list_remove_list(entry->free_listeners, l);
break;
}
}
}
}
void

17
src/bin/ephoto_single_browser.c
View File

@ -1136,6 +1136,21 @@ _go_sharpen(void *data, Evas_Object *obj EINA_UNUSED,
}
}
static void
_go_dither(void *data, Evas_Object *obj EINA_UNUSED,
void *event_info EINA_UNUSED)
{
Ephoto_Single_Browser *sb = data;
if (sb->viewer)
{
sb->editing = EINA_TRUE;
Ephoto_Viewer *v = evas_object_data_get(sb->viewer, "viewer");
ephoto_filter_dither(sb->main, v->image);
}
}
static void
_go_black_and_white(void *data, Evas_Object *obj EINA_UNUSED,
void *event_info EINA_UNUSED)
@ -1484,6 +1499,8 @@ _add_edit_menu_items(Ephoto_Single_Browser *sb, Evas_Object *menu)
_go_black_and_white, sb);
elm_menu_item_add(menu, menu_itt, "insert-image", _("Blur"),
_go_blur, sb);
elm_menu_item_add(menu, menu_itt, "insert-image", _("Dither"),
_go_dither, sb);
elm_menu_item_add(menu, menu_itt, "insert-image", _("Edge Detect"),
_go_edge, sb);
elm_menu_item_add(menu, menu_itt, "insert-image", _("Invert Colors"),