This group of functions will allow you to apply a image transform that will correct some lens defects.
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struct | lfModifier |
| A modifier object contains optimized data required to rectify a image. More...
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#define | LF_CR_1(a) (LF_CR_ ## a) |
| This macro defines a pixel format consisting of one component.
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#define | LF_CR_2(a, b) ((LF_CR_ ## a) | ((LF_CR_ ## b) << 4)) |
| This macro defines a pixel format consisting of two components.
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#define | LF_CR_3(a, b, c) |
| This macro defines a pixel format consisting of three components. More...
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#define | LF_CR_4(a, b, c, d) |
| This macro defines a pixel format consisting of four components. More...
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#define | LF_CR_5(a, b, c, d, e) |
| This macro defines a pixel format consisting of five components. More...
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#define | LF_CR_6(a, b, c, d, e, f) |
| This macro defines a pixel format consisting of six components. More...
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#define | LF_CR_7(a, b, c, d, e, f, g) |
| This macro defines a pixel format consisting of seven components. More...
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#define | LF_CR_8(a, b, c, d, e, f, g, h) |
| This macro defines a pixel format consisting of eight components. More...
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enum | {
LF_MODIFY_TCA = 0x00000001,
LF_MODIFY_VIGNETTING = 0x00000002,
LF_MODIFY_DISTORTION = 0x00000008,
LF_MODIFY_GEOMETRY = 0x00000010,
LF_MODIFY_SCALE = 0x00000020,
LF_MODIFY_PERSPECTIVE = 0x00000040,
LF_MODIFY_ALL = ~0
} |
| A list of bitmask flags used for ordering various image corrections. More...
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enum | lfPixelFormat {
LF_PF_U8,
LF_PF_U16,
LF_PF_U32,
LF_PF_F32,
LF_PF_F64
} |
| A list of pixel formats supported by internal colour callbacks. More...
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enum | lfComponentRole {
LF_CR_END = 0,
LF_CR_NEXT,
LF_CR_UNKNOWN,
LF_CR_INTENSITY,
LF_CR_RED,
LF_CR_GREEN,
LF_CR_BLUE
} |
| These constants define the role of every pixel component, four bits each. "pixel" refers here to a set of values which share the same (x, y) coordinates. More...
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DEPRECATED lfModifier * | lf_modifier_new (const lfLens *lens, float crop, int width, int height) |
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lfModifier * | lf_modifier_create (const lfLens *lens, float imgfocal, float imgcrop, int imgwidth, int imgheight, lfPixelFormat pixel_format, bool reverse) |
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void | lf_modifier_destroy (lfModifier *modifier) |
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DEPRECATED int | lf_modifier_initialize (lfModifier *modifier, const lfLens *lens, lfPixelFormat format, float focal, float aperture, float distance, float scale, lfLensType targeom, int flags, cbool reverse) |
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int | lf_modifier_enable_scaling (lfModifier *modifier, float scale) |
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int | lf_modifier_enable_distortion_correction (lfModifier *modifier) |
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int | lf_modifier_enable_tca_correction (lfModifier *modifier) |
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int | lf_modifier_enable_vignetting_correction (lfModifier *modifier, float aperture, float distance) |
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cbool | lf_modifier_enable_projection_transform (lfModifier *modifier, lfLensType target_projection) |
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int | lf_modifier_enable_perspective_correction (lfModifier *modifier, float *x, float *y, int count, float d) |
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int | lf_modifier_get_mod_flags (lfModifier *modifier) |
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float | lf_modifier_get_auto_scale (lfModifier *modifier, cbool reverse) |
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cbool | lf_modifier_apply_subpixel_distortion (lfModifier *modifier, float xu, float yu, int width, int height, float *res) |
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cbool | lf_modifier_apply_color_modification (lfModifier *modifier, void *pixels, float x, float y, int width, int height, int comp_role, int row_stride) |
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cbool | lf_modifier_apply_geometry_distortion (lfModifier *modifier, float xu, float yu, int width, int height, float *res) |
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cbool | lf_modifier_apply_subpixel_geometry_distortion (lfModifier *modifier, float xu, float yu, int width, int height, float *res) |
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This group of functions will allow you to apply a image transform that will correct some lens defects.
#define LF_CR_3 |
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Value:((LF_CR_ ## a) | ((LF_CR_ ## b) << 4) | \
((LF_CR_ ## c) << 8))
This macro defines a pixel format consisting of three components.
#define LF_CR_4 |
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Value:((LF_CR_ ## a) | ((LF_CR_ ## b) << 4) | \
((LF_CR_ ## c) << 8) | ((LF_CR_ ## d) << 12))
This macro defines a pixel format consisting of four components.
- Examples:
- lenstool.cpp.
#define LF_CR_5 |
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Value:((LF_CR_ ## a) | ((LF_CR_ ## b) << 4) | \
((LF_CR_ ## c) << 8) | ((LF_CR_ ## d) << 12) | \
((LF_CR_ ## e) << 16))
This macro defines a pixel format consisting of five components.
#define LF_CR_6 |
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Value:((LF_CR_ ## a) | ((LF_CR_ ## b) << 4) | \
((LF_CR_ ## c) << 8) | ((LF_CR_ ## d) << 12) | \
((LF_CR_ ## e) << 16) | ((LF_CR_ ## f) << 20))
This macro defines a pixel format consisting of six components.
#define LF_CR_7 |
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Value:((LF_CR_ ## a) | ((LF_CR_ ## b) << 4) | \
((LF_CR_ ## c) << 8) | ((LF_CR_ ## d) << 12) | \
((LF_CR_ ## e) << 16) | ((LF_CR_ ## f) << 20) | \
((LF_CR_ ## g) << 24))
This macro defines a pixel format consisting of seven components.
#define LF_CR_8 |
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Value:((LF_CR_ ## a) | ((LF_CR_ ## b) << 4) | \
((LF_CR_ ## c) << 8) | ((LF_CR_ ## d) << 12) | \
((LF_CR_ ## e) << 16) | ((LF_CR_ ## f) << 20) | \
((LF_CR_ ## g) << 24) | ((LF_CR_ ## h) << 28))
This macro defines a pixel format consisting of eight components.
A list of bitmask flags used for ordering various image corrections.
Enumerator |
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LF_MODIFY_TCA |
Correct (or apply) lens transversal chromatic aberrations
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LF_MODIFY_VIGNETTING |
Correct (or apply) lens vignetting
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LF_MODIFY_DISTORTION |
Correct (or apply) lens distortion
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LF_MODIFY_GEOMETRY |
Convert image geometry
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LF_MODIFY_SCALE |
Additional resize of image
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LF_MODIFY_PERSPECTIVE |
Perspective Correction
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LF_MODIFY_ALL |
Apply all possible corrections
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These constants define the role of every pixel component, four bits each. "pixel" refers here to a set of values which share the same (x, y) coordinates.
Enumerator |
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LF_CR_END |
This marks the end of the role list. It doesn't have to be specified explicitly, since LF_CR_X macros always pad the value with zeros
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LF_CR_NEXT |
This value tells that what follows applies to next pixel. This can be used to define Bayer images, e.g. use LF_CR_3(LF_CR_RED, LF_CR_NEXT, LF_CR_GREEN) for even rows and LF_CR_3(LF_CR_GREEN, LF_CR_NEXT, LF_CR_BLUE) for odd rows.
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LF_CR_UNKNOWN |
This component has an unknown/doesn't matter role
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LF_CR_INTENSITY |
This is the pixel intensity (grayscale)
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LF_CR_RED |
This is the Red pixel component
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LF_CR_GREEN |
This is the Green pixel component
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LF_CR_BLUE |
This is the Blue pixel component
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A list of pixel formats supported by internal colour callbacks.
Enumerator |
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LF_PF_U8 |
Unsigned 8-bit R,G,B
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LF_PF_U16 |
Unsigned 16-bit R,G,B
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LF_PF_U32 |
Unsigned 32-bit R,G,B
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LF_PF_F32 |
32-bit floating-point R,G,B
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LF_PF_F64 |
64-bit floating-point R,G,B
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cbool lf_modifier_apply_color_modification |
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lfModifier * |
modifier, |
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void * |
pixels, |
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float |
x, |
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float |
y, |
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int |
width, |
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int |
height, |
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int |
comp_role, |
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int |
row_stride |
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cbool lf_modifier_apply_geometry_distortion |
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lfModifier * |
modifier, |
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float |
xu, |
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float |
yu, |
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int |
width, |
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int |
height, |
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float * |
res |
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cbool lf_modifier_apply_subpixel_distortion |
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lfModifier * |
modifier, |
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float |
xu, |
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float |
yu, |
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int |
width, |
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int |
height, |
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float * |
res |
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cbool lf_modifier_apply_subpixel_geometry_distortion |
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lfModifier * |
modifier, |
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float |
xu, |
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float |
yu, |
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int |
width, |
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int |
height, |
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float * |
res |
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lfModifier* lf_modifier_create |
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const lfLens * |
lens, |
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float |
imgfocal, |
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float |
imgcrop, |
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int |
imgwidth, |
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int |
imgheight, |
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lfPixelFormat |
pixel_format, |
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bool |
reverse |
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int lf_modifier_enable_distortion_correction |
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lfModifier * |
modifier | ) |
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int lf_modifier_enable_perspective_correction |
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lfModifier * |
modifier, |
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float * |
x, |
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float * |
y, |
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int |
count, |
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float |
d |
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int lf_modifier_enable_scaling |
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lfModifier * |
modifier, |
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float |
scale |
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int lf_modifier_enable_tca_correction |
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lfModifier * |
modifier | ) |
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int lf_modifier_enable_vignetting_correction |
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lfModifier * |
modifier, |
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float |
aperture, |
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float |
distance |
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int lf_modifier_get_mod_flags |
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lfModifier * |
modifier | ) |
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