gen_image_constgen_image_constGenImageConstGenImageConstgen_image_const (Operator)
Name
gen_image_constgen_image_constGenImageConstGenImageConstgen_image_const — Create an image with constant gray value.
Signature
void GenImageConst(HObject* Image, const HTuple& Type, const HTuple& Width, const HTuple& Height)
void HImage::HImage(const HString& Type, Hlong Width, Hlong Height)
void HImage::HImage(const char* Type, Hlong Width, Hlong Height)
void HImage::HImage(const wchar_t* Type, Hlong Width, Hlong Height)
(
Windows only)
void HImage::GenImageConst(const HString& Type, Hlong Width, Hlong Height)
void HImage::GenImageConst(const char* Type, Hlong Width, Hlong Height)
void HImage::GenImageConst(const wchar_t* Type, Hlong Width, Hlong Height)
(
Windows only)
Description
The operator gen_image_constgen_image_constGenImageConstGenImageConstgen_image_const creates an image of the indicated
size. The width and height of the image are determined by
WidthWidthWidthwidthwidth and HeightHeightHeightheightheight. HALCON supports the following
image types:
- 'byte'"byte""byte""byte""byte"
-
1 byte per pixel, unsigned
Value range:
(0..255)
- 'int1'"int1""int1""int1""int1"
-
1 byte per pixel, signed
Value range:
(-128..127)
- 'uint2'"uint2""uint2""uint2""uint2"
-
2 bytes per pixel, unsigned
Value range:
(0..65535)
- 'int2'"int2""int2""int2""int2"
-
2 bytes per pixel, signed
Value range:
(-32768..32767)
- 'int4'"int4""int4""int4""int4"
-
4 bytes per pixel, signed
Value range:
(-2147483648..2147483647)
- 'int8'"int8""int8""int8""int8"
-
8 bytes per pixel, signed
(only available on 64 bit systems)
Value range:
(-9223372036854775808..9223372036854775807)
- 'real'"real""real""real""real"
-
4 bytes per pixel, floating point
Precision: 6 significant decimal digits
Value range:
(-3.4e38..3.4e38)
- 'complex'"complex""complex""complex""complex"
Two matrices of type 'real'"real""real""real""real"
- 'vector_field_relative'"vector_field_relative""vector_field_relative""vector_field_relative""vector_field_relative"
-
Two matrices of type 'real'"real""real""real""real"
Interpretation: Vectors
- 'vector_field_absolute'"vector_field_absolute""vector_field_absolute""vector_field_absolute""vector_field_absolute"
-
Two matrices of type 'real'"real""real""real""real"
Interpretation: Absolute coordinates
- 'direction'"direction""direction""direction""direction"
-
1 byte per pixel, unsigned
Interpretation: Angle divided by two
Value range:
(0..179)
Attention:
The values 180..254 are automatically set to the value
255, which is interpreted as undefined angle.
- 'cyclic'"cyclic""cyclic""cyclic""cyclic"
-
1 byte per pixel, unsigned, cyclic arithmetics
Value range:
(0..255)
With the operator
set_system('init_new_image',<'true'/'false'>)set_system("init_new_image",<"true"/"false">)SetSystem("init_new_image",<"true"/"false">)SetSystem("init_new_image",<"true"/"false">)set_system("init_new_image",<"true"/"false">), it can be
controlled whether the created image is initialized with 0 or not.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Parameters
ImageImageImageimageimage (output_object) image → objectHImageHObjectHObjectHobject * (byte / direction / cyclic / int1 / int2 / uint2 / int4 / int8 / real / complex / vector_field)
Created image with new image matrix.
TypeTypeTypetypetype (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Pixel type.
Default:
'byte'
"byte"
"byte"
"byte"
"byte"
List of values:
'byte'"byte""byte""byte""byte", 'complex'"complex""complex""complex""complex", 'cyclic'"cyclic""cyclic""cyclic""cyclic", 'direction'"direction""direction""direction""direction", 'int1'"int1""int1""int1""int1", 'int2'"int2""int2""int2""int2", 'int4'"int4""int4""int4""int4", 'int8'"int8""int8""int8""int8", 'real'"real""real""real""real", 'uint2'"uint2""uint2""uint2""uint2", 'vector_field_absolute'"vector_field_absolute""vector_field_absolute""vector_field_absolute""vector_field_absolute", 'vector_field_relative'"vector_field_relative""vector_field_relative""vector_field_relative""vector_field_relative"
WidthWidthWidthwidthwidth (input_control) extent.x → HTupleintHTupleHtuple (integer) (int / long) (Hlong) (Hlong)
Width of image.
Default:
512
Suggested values:
128, 256, 512, 1024
Value range:
1
≤
Width
Width
Width
width
width
(lin)
Minimum increment:
1
Recommended increment:
10
HeightHeightHeightheightheight (input_control) extent.y → HTupleintHTupleHtuple (integer) (int / long) (Hlong) (Hlong)
Height of image.
Default:
512
Suggested values:
128, 256, 512, 1024
Value range:
1
≤
Height
Height
Height
height
height
(lin)
Minimum increment:
1
Recommended increment:
10
Example (C)
gen_image_const(&New,"byte",width,height);
get_image_pointer1(New,(Hlong*)&pointer,type,&width,&height);
for (row=0; row<height-1; row++)
{
for (col=0; col<width-1; col++)
{
pointer[row*width+col] = (row + col) % 256;
}
}
Result
If the parameter values are correct, the operator gen_image_constgen_image_constGenImageConstGenImageConstgen_image_const
returns the value 2 (
H_MSG_TRUE)
. Otherwise an exception is raised.
Possible Successors
paint_regionpaint_regionPaintRegionPaintRegionpaint_region,
reduce_domainreduce_domainReduceDomainReduceDomainreduce_domain,
get_image_pointer1get_image_pointer1GetImagePointer1GetImagePointer1get_image_pointer1,
copy_objcopy_objCopyObjCopyObjcopy_obj
Alternatives
gen_image1gen_image1GenImage1GenImage1gen_image1,
gen_image3gen_image3GenImage3GenImage3gen_image3
See also
reduce_domainreduce_domainReduceDomainReduceDomainreduce_domain,
paint_graypaint_grayPaintGrayPaintGraypaint_gray,
paint_regionpaint_regionPaintRegionPaintRegionpaint_region,
set_grayvalset_grayvalSetGrayvalSetGrayvalset_grayval,
get_image_pointer1get_image_pointer1GetImagePointer1GetImagePointer1get_image_pointer1
Module
Foundation