zoom_image_factor

Herror ::zoom_image_factor ( Hobject Image, Hobject *ImageZoomed, const HTuple &ScaleWidth, const HTuple &ScaleHeight, const HTuple &Interpolation ) HImage HImage::ZoomImageFactor ( const HTuple &ScaleWidth, const HTuple &ScaleHeight, const HTuple &Interpolation ) const HImageArray HImageArray::ZoomImageFactor ( const HTuple &ScaleWidth, const HTuple &ScaleHeight, const HTuple &Interpolation ) const

Zoom an image by a given factor.

::zoom_image_factor scales the image Image by a factor of ScaleWidth in width and a factor ScaleHeight in height. The parameter Interpolation determines the type of interpolation used (see ::affine_trans_image).

Parameters

`Image` (input_object)	(multichannel-)image(-array) `->` Hobject: HImage(Array) ( byte / int2 )
Input image.

`ImageZoomed` (output_object)	(multichannel-)image(-array) `->` Hobject : HImage(Array)* ( byte / int2 )
Scaled image.

`ScaleWidth` (input_control)	extent.x `->` HTuple.double
Scale factor for the width of the image.
Default value: 0.5
Suggested values: 0.25, 0.5, 1.5, 2.0
Typical range of values: `0.001 <= ScaleWidth <= 10.0`
Minimum increment: 0.001
Recommended increment: 0.1

`ScaleHeight` (input_control)	extent.y `->` HTuple.double
Scale factor for the height of the image.
Default value: 0.5
Suggested values: 0.25, 0.5, 1.5, 2.0
Typical range of values: `0.001 <= ScaleHeight <= 10.0`
Minimum increment: 0.001
Recommended increment: 0.1

`Interpolation` (input_control)	string `->` HTuple.char *
Type of interpolation.
Default value: 'constant'
List of values: 'none', 'constant', 'weighted'

Example

read_image(&Image,"affe");
disp_image(Image,WindowHandle);
zoom_image_factor(Image,&ZooImage,0,0.5,0.5);
disp_image(ZooImage,WindowHandle);

Alternatives

::zoom_image_factor, ::affine_trans_image, ::hom_mat2d_scale

Module

Image filters