Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
typedef struct _LOCALHISTOEQUALIZEDLGPARAMS
{
L_UINT uStructSize;
pBITMAPHANDLE pBitmap;
L_BOOL bZoomToFit;
L_INT nWidth;
L_INT nHeight;
L_INT nXExtention;
L_INT nYExtention;
L_UINT uType;
L_UINT uSmooth;
L_UINT32 uDlgFlags;
LTCOMMDLGHELPCB pfnHelpCallback;
L_VOID *pHelpCallBackUserData;
} LOCALHISTOEQUALIZEDLGPARAMS, * LPLOCALHISTOEQUALIZEDLGPARAMS;
The LOCALHISTOEQUALIZEDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogColor::DoModalLocalHistoEqualize function. After the user closes the dialog box, this structure is updated with information about the user's selections.
Member |
Description |
|
uStructSize |
Size of this structure, in bytes. Use the sizeof operator to calculate this value. |
|
pBitmap |
Ignored. |
|
bZoomToFit |
Flag that indicates the initial zoom level for previewing the image. Possible values are: |
|
|
Value |
Meaning |
|
TRUE |
Set the initial zoom level to "Zoom to fit". |
|
FALSE |
Set the initial zoom level to "Normal (1:1)". |
nWidth |
The width of the local histogram equalizer rectangle, in pixels. The width should be more than zero. |
|
nHeight |
The height of the local histogram equalizer rectangle, in pixels. The height should be more than zero. |
|
nXExtention |
The extension of the width of the local histogram equalizer rectangle, in pixels. |
|
nYExtention |
The extension of the height of the local histogram equalizer rectangle, in pixels. |
|
uType |
Flag that indicates which color space to equalize. Possible values are: |
|
|
Value |
Meaning |
|
RGB_SPACE |
[0x0001] Linearize the number of pixels across the RGB color space. (Separated channels) |
|
YUV_SPACE |
[0x0002] Linearize the number of pixels across the YUV color space. (Best results) |
|
GRAY_SPACE |
[0x0004] Linearize the number of pixels per gray level in a gray level representation of the image. |
uSmooth |
Size of the area to be used when smoothing the edges between localized blocks. Possible values range from 0 to 7, but if nHeight is less than or equal to 7 then the maximum value for this item is nHeight - 1. |
|
uDlgFlags |
User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are: |
|
|
Value |
Meaning |
|
DLG_LOCALHISTOEQUALIZE_SHOW_CONTEXTHELP |
[0x00000002] dialog should contain a context sensitive help icon. |
|
DLG_LOCALHISTOEQUALIZE_SHOW_APPLY |
[0x00000080] Show the Apply button in the dialog. The dialog will not apply any effect unless the user presses the Apply button. |
pfnHelpCallback |
Ignored. |
|
pHelpCallBackUserData |
Ignored. |