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get_image_pointer1_rectget_image_pointer1_rectGetImagePointer1Rectget_image_pointer1_rectGetImagePointer1RectGetImagePointer1Rect (Operator)

Name

get_image_pointer1_rectget_image_pointer1_rectGetImagePointer1Rectget_image_pointer1_rectGetImagePointer1RectGetImagePointer1Rect — Access to the image data pointer and the image data inside the smallest rectangle of the domain of the input image.

Signature

get_image_pointer1_rect(Image : : : PixelPointer, Width, Height, VerticalPitch, HorizontalBitPitch, BitsPerPixel)

Herror get_image_pointer1_rect(const Hobject Image, Hlong* PixelPointer, Hlong* Width, Hlong* Height, Hlong* VerticalPitch, Hlong* HorizontalBitPitch, Hlong* BitsPerPixel)

Herror T_get_image_pointer1_rect(const Hobject Image, Htuple* PixelPointer, Htuple* Width, Htuple* Height, Htuple* VerticalPitch, Htuple* HorizontalBitPitch, Htuple* BitsPerPixel)

Herror get_image_pointer1_rect(Hobject Image, Hlong* PixelPointer, Hlong* Width, Hlong* Height, Hlong* VerticalPitch, Hlong* HorizontalBitPitch, Hlong* BitsPerPixel)

Hlong HImage::GetImagePointer1Rect(HTuple* Width, HTuple* Height, HTuple* VerticalPitch, HTuple* HorizontalBitPitch, HTuple* BitsPerPixel) const

void GetImagePointer1Rect(const HObject& Image, HTuple* PixelPointer, HTuple* Width, HTuple* Height, HTuple* VerticalPitch, HTuple* HorizontalBitPitch, HTuple* BitsPerPixel)

void* HImage::GetImagePointer1Rect(Hlong* Width, Hlong* Height, Hlong* VerticalPitch, Hlong* HorizontalBitPitch, Hlong* BitsPerPixel) const

void HOperatorSetX.GetImagePointer1Rect(
[in] IHUntypedObjectX* Image, [out] VARIANT* PixelPointer, [out] VARIANT* Width, [out] VARIANT* Height, [out] VARIANT* VerticalPitch, [out] VARIANT* HorizontalBitPitch, [out] VARIANT* BitsPerPixel)

Hlong HImageX.GetImagePointer1Rect(
[out] Hlong* Width, [out] Hlong* Height, [out] Hlong* VerticalPitch, [out] Hlong* HorizontalBitPitch, [out] Hlong* BitsPerPixel)

static void HOperatorSet.GetImagePointer1Rect(HObject image, out HTuple pixelPointer, out HTuple width, out HTuple height, out HTuple verticalPitch, out HTuple horizontalBitPitch, out HTuple bitsPerPixel)

IntPtr HImage.GetImagePointer1Rect(out int width, out int height, out int verticalPitch, out int horizontalBitPitch, out int bitsPerPixel)

Description

The operator get_image_pointer1_rectget_image_pointer1_rectGetImagePointer1Rectget_image_pointer1_rectGetImagePointer1RectGetImagePointer1Rect returns the pointer PixelPointerPixelPointerPixelPointerPixelPointerPixelPointerpixelPointer which points to the beginning of the image data inside the smallest rectangle of the domain of ImageImageImageImageImageimage. VerticalPitchVerticalPitchVerticalPitchVerticalPitchVerticalPitchverticalPitch corresponds to the width of the input image ImageImageImageImageImageimage multiplied with the number of bytes per pixel (HorizontalBitPitchHorizontalBitPitchHorizontalBitPitchHorizontalBitPitchHorizontalBitPitchhorizontalBitPitch / 8). WidthWidthWidthWidthWidthwidth and HeightHeightHeightHeightHeightheight correspond to the size of the smallest rectangle of the input region. HorizontalBitPitchHorizontalBitPitchHorizontalBitPitchHorizontalBitPitchHorizontalBitPitchhorizontalBitPitch is the horizontal distance (in bits) between two neighboring pixels. BitsPerPixelBitsPerPixelBitsPerPixelBitsPerPixelBitsPerPixelbitsPerPixel is the number of used bits per pixel. get_image_pointer1_rectget_image_pointer1_rectGetImagePointer1Rectget_image_pointer1_rectGetImagePointer1RectGetImagePointer1Rect is symmetrical to gen_image1_rectgen_image1_rectGenImage1Rectgen_image1_rectGenImage1RectGenImage1Rect.

Attention

The operator get_image_pointer1_rectget_image_pointer1_rectGetImagePointer1Rectget_image_pointer1_rectGetImagePointer1RectGetImagePointer1Rect should only be used for entry into newly created images, since otherwise the gray values of other images might be overwritten (see relational structure).

Parallelization

Parameters

ImageImageImageImageImageimage (input_object)  singlechannelimage objectHImageHImageHImageHImageXHobject (byte / uint2 / int4)

Input image (Himage).

PixelPointerPixelPointerPixelPointerPixelPointerPixelPointerpixelPointer (output_control)  pointer HTupleHTupleHTupleVARIANTHtuple (integer) (IntPtr) (Hlong) (Hlong) (Hlong) (Hlong)

Pointer to the image data.

WidthWidthWidthWidthWidthwidth (output_control)  extent.x HTupleHTupleHTupleVARIANTHtuple (integer) (int / long) (Hlong) (Hlong) (Hlong) (Hlong)

Width of the output image.

HeightHeightHeightHeightHeightheight (output_control)  extent.y HTupleHTupleHTupleVARIANTHtuple (integer) (int / long) (Hlong) (Hlong) (Hlong) (Hlong)

Height of the output image.

VerticalPitchVerticalPitchVerticalPitchVerticalPitchVerticalPitchverticalPitch (output_control)  integer HTupleHTupleHTupleVARIANTHtuple (integer) (int / long) (Hlong) (Hlong) (Hlong) (Hlong)

Width(input image)*(HorizontalBitPitch/8).

HorizontalBitPitchHorizontalBitPitchHorizontalBitPitchHorizontalBitPitchHorizontalBitPitchhorizontalBitPitch (output_control)  integer HTupleHTupleHTupleVARIANTHtuple (integer) (int / long) (Hlong) (Hlong) (Hlong) (Hlong)

Distance between two neighboring pixels in bits .

BitsPerPixelBitsPerPixelBitsPerPixelBitsPerPixelBitsPerPixelbitsPerPixel (output_control)  integer HTupleHTupleHTupleVARIANTHtuple (integer) (int / long) (Hlong) (Hlong) (Hlong) (Hlong)

Number of used bits per pixel.

Example (C)

Hobject       image,reg,imagereduced;
char          typ[128];
Hlong          width,height,vert_pitch,hori_bit_pitch,bits_per_pix, winID;
unsigned char *ptr;

open_window(0,0,512,512,"black",winID);
read_image(&image,"monkey");
draw_region(&reg,winID);
reduce_domain(image,reg,&imagereduced);
get_image_pointer1_rect(imagereduced,(Hlong*)&ptr,&width,&height,
                        &vert_pitch,&hori_bit_pitch,&bits_per_pix);

Result

The operator get_image_pointer1_rectget_image_pointer1_rectGetImagePointer1Rectget_image_pointer1_rectGetImagePointer1RectGetImagePointer1Rect returns the value 2 (H_MSG_TRUE) if exactly one image was passed. The behavior in case of empty input (no input images available) is set via the operator set_system('no_object_result',<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)set_system("no_object_result",<Result>)SetSystem("no_object_result",<Result>)SetSystem("no_object_result",<Result>). If necessary an exception is raised.

Possible Predecessors

read_imageread_imageReadImageread_imageReadImageReadImage, gen_image1_rectgen_image1_rectGenImage1Rectgen_image1_rectGenImage1RectGenImage1Rect

Alternatives

set_grayvalset_grayvalSetGrayvalset_grayvalSetGrayvalSetGrayval, get_grayvalget_grayvalGetGrayvalget_grayvalGetGrayvalGetGrayval, get_image_pointer3get_image_pointer3GetImagePointer3get_image_pointer3GetImagePointer3GetImagePointer3, get_image_pointer1get_image_pointer1GetImagePointer1get_image_pointer1GetImagePointer1GetImagePointer1

See also

paint_regionpaint_regionPaintRegionpaint_regionPaintRegionPaintRegion, paint_graypaint_grayPaintGraypaint_grayPaintGrayPaintGray, gen_image1_rectgen_image1_rectGenImage1Rectgen_image1_rectGenImage1RectGenImage1Rect

Module

Foundation


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