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- PPM2CYUV(1) PPM2CYUV(1)
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- NNAAMMEE
- ppm2cyuv - Component Y Cb Cr (YUV) conversion to raw PPM
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- SSYYNNOOPPSSIISS
- ppppmm22ccyyuuvv iinnffiillee oouuttffiillee [[--zz ssuuffffiixx]]** [[--CCCCIIRR660011]]
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- DDEESSCCRRIIPPTTIIOONN
- _p_p_m_2_c_y_u_v is a conversion program between component the raw
- ppm file format and component yuv files. The chrominances
- of the input are decimated by a factor of 2 in both the
- horizontal and vertial dimensions.
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- OOPPTTIIOONNSS
- --CCCCIIRR660011
- specifies that the CCIR601 YCbCr colorspace is to
- be used instead of the JFIF colorspace.
-
- --zz denotes the component file suffixes in sequential
- order. For example
- --zz ..yy..ccllrr --zz ..uu..ccllrr --zz ..vv..ccllrr indicates that the
- luminance and the two chrominance files end with a
- suffix of ..yy..ccllrr,, ..uu..ccllrr,, and ..vv..ccllrr,, in that
- order. If unspecified, the suffixes default to ..YY,,
- UU,, and ..VV..
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- EEXXAAMMPPLLEESS
- To convert a ppm file in iinn..ppppmm
- to a triple set of raw raster scan YCbCr (also known as
- digital YUV) files with dimension 352x240 Y, 176x120 U,V,
- with labels, hheelllloo00..YY hheelllloo00..UU hheelllloo00..VV,, type
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- ppppmm22ccyyuuvv iinn..ppppmm hheelllloo00
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- The PPM file format is very portable - see Jef Poskanzer's
- PBMPLUS library.
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- FFTTPP
- _p_p_m_2_c_y_u_v is available by anonymous ftp from _h_a_v_e_-
- _f_u_n_._s_t_a_n_f_o_r_d_._e_d_u_:_p_u_b_/_c_v_/_C_V_v_1_._2_._1_._t_a_r_._Z_.
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-
- BBUUGGSS
- Probably lurking somewhere. Please inform the author at
- achung@cs.stanford.edu if any bugs are found.
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- AAUUTTHHOORR
- Andy Hung
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- 14 June 1993 1
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