images::TestImageDither Class Reference

#include <image_dither_unittest.h>

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Public Member Functions
	TestImageDither (void)
	~TestImageDither (void)
void	set_image (const std::string &filepath)
void	test (void)
	(1)Calling ImageDither to dither to 8bits. (2)Convert 8bits to 24bits for saving. (3)Save the image data in 24bits to file to verify.

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Detailed Description

Definition at line 34 of file image_dither_unittest.h.

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Constructor & Destructor Documentation

TestImageDither::TestImageDither

(

void

)

Definition at line 34 of file image_dither_unittest.cpp.

{
    g_type_init ();
}

TestImageDither::~TestImageDither

(

void

)

Definition at line 39 of file image_dither_unittest.cpp.

{
}

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Member Function Documentation

void TestImageDither::set_image

(

const std::string &

filepath

)

Definition at line 43 of file image_dither_unittest.cpp.

Referenced by main().

{
    img_path = filepath;
}

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void TestImageDither::test

(

void

)

(1)Calling ImageDither to dither to 8bits. (2)Convert 8bits to 24bits for saving. (3)Save the image data in 24bits to file to verify.

Definition at line 48 of file image_dither_unittest.cpp.

References images::ImageDither::dither_to_8bits().

Referenced by main().

{
    // Load the image.
    GdkPixbuf * pixbuf = gdk_pixbuf_new_from_file (img_path.c_str (), 0);

    // Set all fields of attrs_src.
    BitmapAttributes attrs_src, attrs_dst, attrs_tmp;

    attrs_src.width = gdk_pixbuf_get_width (pixbuf);
    attrs_src.height = gdk_pixbuf_get_height (pixbuf);
    attrs_src.rowstride = gdk_pixbuf_get_rowstride (pixbuf);
    attrs_src.data = gdk_pixbuf_get_pixels (pixbuf);
    attrs_src.bytes_per_pixel = gdk_pixbuf_get_n_channels (pixbuf);

    // Convert the image data to be in 8bits.
    ImageDither dither;
    dither.dither_to_8bits (&attrs_src, &attrs_dst);

    // Convert the image data to be in 24bits for saving.
    convert_8bits_to_24bits (&attrs_dst, &attrs_tmp);

    // Save to image file to verify.
    save_24bits_to_file (&attrs_tmp);

    // Free the memory.
    g_object_unref (pixbuf);
    delete [] attrs_dst.data;
    // delete [] attrs_tmp.data;
}

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The documentation for this class was generated from the following files:

• image_dither_unittest.h
• image_dither_unittest.cpp