static mp_obj_t py_image_threshold(mp_obj_t image_obj, mp_obj_t color_list_obj, mp_obj_t threshold)
{
color_t *color;
image_t *image;
/* sanity checks */
PY_ASSERT_TRUE(sensor.pixformat == PIXFORMAT_RGB565);
PY_ASSERT_TRUE(sensor.framesize <= FRAMESIZE_QCIF);
/* read arguments */
image = py_image_cobj(image_obj);
int thresh = mp_obj_get_int(threshold);
/* returned image */
image_t bimage = {
.w=image->w,
.h=image->h,
.bpp=1,
.pixels=image->data+(image->w*image->h*image->bpp)
};
/* copy color list */
uint len;
mp_obj_t *color_arr;
mp_obj_get_array(color_list_obj, &len, &color_arr);
color = xalloc(len*sizeof*color);
for (int i=0; i<len; i++) {
mp_obj_t *color_obj;
mp_obj_get_array_fixed_n(color_arr[i], 3, &color_obj);
color[i].r = mp_obj_get_int(color_obj[0]);
color[i].g = mp_obj_get_int(color_obj[1]);
color[i].b = mp_obj_get_int(color_obj[2]);
}
/* Threshold image using reference color */
imlib_threshold(image, &bimage, color, len, thresh);
return py_image_from_struct(&bimage);
}
static mp_obj_t py_image_rainbow(mp_obj_t src_image_obj)
{
image_t *src_image = NULL;
/* get C image pointer */
src_image = py_image_cobj(src_image_obj);
/* sanity checks */
PY_ASSERT_TRUE(src_image->bpp==1);
image_t dst_image = {
.w=src_image->w,
.h=src_image->h,
.bpp=2,
.pixels=xalloc(src_image->w*src_image->h*2)
};
imlib_rainbow(src_image, &dst_image);
*src_image = dst_image;
return src_image_obj;
}
static mp_obj_t py_image_compress(mp_obj_t image_obj, mp_obj_t quality)
{
image_t *image = py_image_cobj(image_obj);
image_t cimage = {
.w=image->w,
.h=image->h,
.bpp=0,
.pixels= NULL
};
jpeg_compress(image, &cimage, mp_obj_get_int(quality));
return py_image_from_struct(&cimage);
}
static mp_obj_t py_image_draw_line(mp_obj_t image_obj, mp_obj_t line_obj)
{
/* get image pointer */
struct image *image;
image = py_image_cobj(image_obj);
mp_obj_t *array;
mp_obj_get_array_fixed_n(line_obj, 4, &array);
int x0 = mp_obj_get_int(array[0]);
int y0 = mp_obj_get_int(array[1]);
int x1 = mp_obj_get_int(array[2]);
int y1 = mp_obj_get_int(array[3]);
imlib_draw_line(image, x0, y0, x1, y1);
return mp_const_none;
}
static mp_obj_t py_image_draw_circle(mp_obj_t image_obj, mp_obj_t c_obj, mp_obj_t r_obj)
{
int cx, cy, r;
mp_obj_t *array;
struct image *image;
color_t c = {.r=0xFF, .g=0xFF, .b=0xFF};
/* get image pointer */
image = py_image_cobj(image_obj);
/* center */
mp_obj_get_array_fixed_n(c_obj, 2, &array);
cx = mp_obj_get_int(array[0]);
cy = mp_obj_get_int(array[1]);
/* radius */
r = mp_obj_get_int(r_obj);
imlib_draw_circle(image, cx, cy, r, &c);
return mp_const_none;
}
static mp_obj_t py_image_draw_string(uint n_args, const mp_obj_t *args)
{
int x = mp_obj_get_int(args[1]);
int y = mp_obj_get_int(args[2]);
image_t *image =py_image_cobj(args[0]);
const char *str = mp_obj_str_get_str(args[3]);
color_t c = {.r=0xFF, .g=0xFF, .b=0xFF};
if (n_args == 5) {
// get color
mp_obj_t *array;
mp_obj_get_array_fixed_n(args[4], 3, &array);
c.r = mp_obj_get_int(array[0]);
c.g = mp_obj_get_int(array[1]);
c.b = mp_obj_get_int(array[2]);
}
imlib_draw_string(image, x, y, str, &c);
return mp_const_none;
}
static mp_obj_t py_image_erode(mp_obj_t image_obj, mp_obj_t ksize_obj)
{
image_t *image = NULL;
image = py_image_cobj(image_obj);
/* sanity checks */
PY_ASSERT_TRUE(image->bpp==1);
imlib_erode(image, mp_obj_get_int(ksize_obj));
return mp_const_none;
}
static mp_obj_t py_image_threshold(mp_obj_t image_obj, mp_obj_t color_list_obj, mp_obj_t threshold)
{
color_t *color;
image_t *image;
/* sanity checks */
PY_ASSERT_TRUE_MSG(sensor.pixformat == PIXFORMAT_RGB565,
"This function is only supported on RGB565 images");
PY_ASSERT_TRUE_MSG(sensor.framesize <= OMV_MAX_BLOB_FRAME,
"This function is only supported on "OMV_MAX_BLOB_FRAME_STR" and smaller frames");
/* read arguments */
image = py_image_cobj(image_obj);
int thresh = mp_obj_get_int(threshold);
/* returned image */
image_t bimage = {
.w=image->w,
.h=image->h,
.bpp=1,
.pixels=image->data+(image->w*image->h*image->bpp)
};
/* copy color list */
uint len;
mp_obj_t *color_arr;
mp_obj_get_array(color_list_obj, &len, &color_arr);
color = xalloc(len*sizeof*color);
for (int i=0; i<len; i++) {
mp_obj_t *color_obj;
mp_obj_get_array_fixed_n(color_arr[i], 3, &color_obj);
color[i].r = mp_obj_get_int(color_obj[0]);
color[i].g = mp_obj_get_int(color_obj[1]);
color[i].b = mp_obj_get_int(color_obj[2]);
}
/* Threshold image using reference color */
imlib_threshold(image, &bimage, color, len, thresh);
return py_image_from_struct(&bimage);
}
static mp_obj_t py_image_rainbow(mp_obj_t src_image_obj)
{
image_t *src_image = NULL;
/* get C image pointer */
src_image = py_image_cobj(src_image_obj);
/* sanity checks */
PY_ASSERT_TRUE_MSG(src_image->bpp == 1,
"This function is only supported on GRAYSCALE images");
image_t dst_image = {
.w=src_image->w,
.h=src_image->h,
.bpp=2,
.pixels=xalloc(src_image->w*src_image->h*2)
};
imlib_rainbow(src_image, &dst_image);
*src_image = dst_image;
return src_image_obj;
}
static mp_obj_t py_image_compress(mp_obj_t image_obj, mp_obj_t quality)
{
image_t *image = py_image_cobj(image_obj);
image_t cimage = {
.w=image->w,
.h=image->h,
.bpp = JPEG_INIT_BUF,
.pixels = xalloc(JPEG_INIT_BUF)
};
jpeg_compress(image, &cimage, mp_obj_get_int(quality));
return py_image_from_struct(&cimage);
}
