imshow does not show image properly (gnuplot is being used)

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imshow does not show image properly (gnuplot is being used)

by Saswata Mandal :: Rate this Message:

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Bug report for Octave 3.0.3 configured for i686-pc-msdosmsvc

Description:
-----------
x = imread('image.png');
imshow(x);

I have attached a sample image and imshow output.
image.png -> original image
result.png -> imshow output

Repeat-By:
---------


Fix:
---

  * If possible, replace this item with a description of how to
    fix the problem (if you don't have a fix for the problem, don't
    include this section, but please do submit your report anyway).



Configuration (please do not edit this section):
-----------------------------------------------

uname output:     Windows
configure opts:  
Fortran compiler: fc-msvc
FFLAGS:           -O2
F2C:              @F2C@
F2CFLAGS:         @F2CFLAGS@
FLIBS:            -lhdf5 -lzlib -lf2c -lkernel32
CPPFLAGS:         -I.  -Ic:/Software/VCLibs/include
INCFLAGS:         -I. -I. -I./liboctave -I./src -I./libcruft/misc
C compiler:       cc-msvc, version
CFLAGS:           -O2 -MD
CPICFLAG:        
C++ compiler:     cc-msvc, version
CXXFLAGS:         -O2 -EHs -MD
CXXPICFLAG:      
LD_CXX:           cc-msvc
LDFLAGS:         
LIBFLAGS:         -L.
RLD_FLAG:        
BLAS_LIBS:        -llapack -lblas
FFTW_LIBS:        -lfftw3
LIBS:             -lreadline  -lncurses -lhdf5 -lzlib  -lws2_32 -lkernel32
LEXLIB:          
LIBGLOB:          -lglob
SED:              /usr/bin/sed
DEFS:
-DPACKAGE_NAME="" -DPACKAGE_TARNAME="" -DPACKAGE_VERSION="" -DPACKAGE_STRING="" -DPACKAGE_BUGREPORT="" -DOCTAVE_SOURCE=1 -D_GNU_SOURCE=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DSEPCHAR=';' -DSEPCHAR_STR=";" -D__NO_MATH_INLINES=1 -DCXX_NEW_FRIEND_TEMPLATE_DECL=1 -DCXX_ISO_COMPLIANT_LIBRARY=1 -DCXX_ABI=unknown -DHAVE_QHULL=1 -DHAVE_PCRE=1 -DHAVE_ZLIB_H=1 -DHAVE_ZLIB=1 -DHAVE_HDF5_H=1 -DHAVE_HDF5=1 -DHAVE_H5GGET_NUM_OBJS=1 -D_HDF5USEDLL_=1 -DHAVE_FFTW3=1 -DHAVE_GLPK_H=1 -DHAVE_GLPK=1 -DHAVE_CURL_CURL_H=1 -DHAVE_CURL=1 -DHAVE_IEEE754_DATA_FORMAT=1 -DF77_FUNC(name,NAME)=name ## _ -DF77_FUNC_(name,NAME)=name ## __ -DHAVE_BLAS=1 -DHAVE_SUITESPARSE_UMFPACK_H=1 -DHAVE_UMFPACK=1 -DUMFPACK_SEPARATE_SPLIT=1 -DHAVE_SUITESPARSE_COLAMD_H=1 -DHAVE_COLAMD=1 -DHAVE_SUITESPARSE_CCOLAMD_H=1 -DHAVE_CCOLAMD=1 -DHAVE_SUITESPARSE_CHOLMOD_H=1 -DHAVE_CHOLMOD=1 -DHAVE_SUITESPARSE_CS_H=1 -DHAVE_CXSPARSE=1 -Dmode_t=int -Dpid_t=int -Duid_t=int -Dgid_t=int -DHAVE_DEV_T=1 -DHAVE_INO_T=1 -DHAVE_LONG_LONG_INT=1 -DHAVE_UNSIGNED_LONG_LONG_INT=1 -DHAVE_SIG_ATOMIC_T=1 -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4 -DSIZEOF_LONG_LONG=8 -DHAVE_ALLOCA=1 -DNPOS=std::string::npos -DHAVE_PLACEMENT_DELETE=1 -DSTDC_HEADERS=1 -DHAVE_ASSERT_H=1 -DHAVE_DIRECT_H=1 -DHAVE_FCNTL_H=1 -DHAVE_FLOAT_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_LIMITS_H=1 -DHAVE_LOCALE_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STDINT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_UTIME_H=1 -DHAVE_UNISTD_H=1 -DHAVE_VARARGS_H=1 -DHAVE_SSTREAM=1 -DHAVE_GLOB_H=1 -DHAVE_FNMATCH_H=1 -DHAVE_CONIO_H=1 -DHAVE_ATEXIT=1 -DHAVE_CHMOD=1 -DHAVE_DUP2=1 -DHAVE_EXECVP=1 -DHAVE_GETCWD=1 -DHAVE_GETPID=1 -DHAVE__KBHIT=1 -DHAVE_MEMMOVE=1 -DHAVE_MKDIR=1 -DHAVE_PUTENV=1 -DHAVE_RAISE=1 -DHAVE_RENAME=1 -DHAVE_RMDIR=1 -DHAVE_SETLOCALE=1 -DHAVE_SETVBUF=1 -DHAVE_STAT=1 -DHAVE_STRDUP=1 -DHAVE_STRERROR=1 -DHAVE_STRICMP=1 -DHAVE_STRNICMP=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1 -DHAVE_UNLINK=1 -DHAVE_UTIME=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1 -DHAVE_VSNPRINTF=1 -DHAVE__CHMOD=1 -DHAVE__SNPRINTF=1 -DHAVE__UTIME32=1 -DOCTAVE_HAVE_BROKEN_STRPTIME=1 -D_USE_MATH_DEFINES=1 -DHAVE_LOADLIBRARY_API=1 -DENABLE_DYNAMIC_LINKING=1 -DHAVE__FINITE=1 -DHAVE__ISNAN=1 -DHAVE__COPYSIGN=1 -DHAVE_DECL_SIGNBIT=0 -DHAVE_STRUCT_STAT_ST_RDEV=1 -DHAVE_DECL_TZNAME=1 -DHAVE_TZNAME=1 -DCLOSEDIR_VOID=1 -DMKDIR_TAKES_ONE_ARG=1 -DUSE_READLINE=1 -DRETSIGTYPE=void -DHAVE_DECL_SYS_SIGLIST=0 -DMUST_REINSTALL_SIGHANDLERS=1 -DRETSIGTYPE_IS_VOID=1 -DGNUPLOT_BINARY="pgnuplot"


User-preferences (please do not edit this section):

  EDITOR = C:\Program Files (x86)\Octave\tools\wscite\SciTE.exe
  EXEC_PATH = C:\Program Files (x86)\Octave\msys\bin;C:\Program Files (x86)\Octave\libexec\octave\3.0.3\site\exec\i686-pc-msdosmsvc;C:\Program Files (x86)\Octave\libexec\octave\api-v32\site\exec\i686-pc-msdosmsvc;C:\Program Files (x86)\Octave\libexec\octave\site\exec\i686-pc-msdosmsvc;C:\Program Files (x86)\Octave\libexec\octave\3.0.3\exec\i686-pc-msdosmsvc;C:\Program Files (x86)\Octave\bin;C:\Program Files (x86)\Octave;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\PROGRA~1\CA\SHARED~1\SCANEN~1;C:\Program Files\CA\eTrust Antivirus
  IMAGE_PATH = .;C:\Program Files (x86)\Octave\share\octave\3.0.3\imagelib
  PAGER = less
  PS1 = \s:\#>
  PS2 = >
  PS4 = +
  beep_on_error = 0
  completion_append_char = 
  crash_dumps_octave_core = 1
  echo_executing_commands = 0
  fixed_point_format = 0
  gnuplot_binary = pgnuplot
  gnuplot_command_end =

  gnuplot_command_plot = pl
  gnuplot_command_replot = rep
  gnuplot_command_splot = sp
  gnuplot_command_title = t
  gnuplot_command_using = u
  gnuplot_command_with = w
  history_file = C:\Users\sas\.octave_hist
  history_size = 1024
  ignore_function_time_stamp = system
  info_file = C:\Program Files (x86)\Octave\share\info\octave.info
  info_program = info
  makeinfo_program = makeinfo
  max_recursion_depth = 256
  output_max_field_width = 5
  output_precision = 5
  page_output_immediately = 0
  page_screen_output = 1
  print_answer_id_name = 1
  print_empty_dimensions = 1
  save_precision = 16
  saving_history = 1
  sighup_dumps_octave_core = 1
  sigterm_dumps_octave_core = 1
  silent_functions = 0
  split_long_rows = 1
  string_fill_char = 
  struct_levels_to_print = 2
  suppress_verbose_help_message = 0





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image.png (40K) Download Attachment
result..png (108K) Download Attachment

Re: imshow does not show image properly (gnuplot is being used)

by michael714 :: Rate this Message:

Reply to Author | View Threaded | Show Only this Message

I noticed the same thing.  I was able to view my image properly by trying the following:

image(x);
imagesc(x);

In some cases, one of the image display functions works better than the others.

Saswata Mandal wrote:
Bug report for Octave 3.0.3 configured for i686-pc-msdosmsvc

Description:
-----------
x = imread('image.png');
imshow(x);

I have attached a sample image and imshow output.
image.png -> original image
result.png -> imshow output

Repeat-By:
---------


Fix:
---

  * If possible, replace this item with a description of how to
    fix the problem (if you don't have a fix for the problem, don't
    include this section, but please do submit your report anyway).



Configuration (please do not edit this section):
-----------------------------------------------

uname output:     Windows
configure opts:
Fortran compiler: fc-msvc
FFLAGS:           -O2
F2C:              @F2C@
F2CFLAGS:         @F2CFLAGS@
FLIBS:            -lhdf5 -lzlib -lf2c -lkernel32
CPPFLAGS:         -I.  -Ic:/Software/VCLibs/include
INCFLAGS:         -I. -I. -I./liboctave -I./src -I./libcruft/misc
C compiler:       cc-msvc, version
CFLAGS:           -O2 -MD
CPICFLAG:
C++ compiler:     cc-msvc, version
CXXFLAGS:         -O2 -EHs -MD
CXXPICFLAG:
LD_CXX:           cc-msvc
LDFLAGS:
LIBFLAGS:         -L.
RLD_FLAG:
BLAS_LIBS:        -llapack -lblas
FFTW_LIBS:        -lfftw3
LIBS:             -lreadline  -lncurses -lhdf5 -lzlib  -lws2_32 -lkernel32
LEXLIB:
LIBGLOB:          -lglob
SED:              /usr/bin/sed
DEFS:
-DPACKAGE_NAME="" -DPACKAGE_TARNAME="" -DPACKAGE_VERSION=""
-DPACKAGE_STRING="" -DPACKAGE_BUGREPORT="" -DOCTAVE_SOURCE=1 -D_GNU_SOURCE=1
-DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1
-DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1
-DHAVE_UNISTD_H=1 -DSEPCHAR=';' -DSEPCHAR_STR=";" -D__NO_MATH_INLINES=1
-DCXX_NEW_FRIEND_TEMPLATE_DECL=1 -DCXX_ISO_COMPLIANT_LIBRARY=1
-DCXX_ABI=unknown -DHAVE_QHULL=1 -DHAVE_PCRE=1 -DHAVE_ZLIB_H=1 -DHAVE_ZLIB=1
-DHAVE_HDF5_H=1 -DHAVE_HDF5=1 -DHAVE_H5GGET_NUM_OBJS=1 -D_HDF5USEDLL_=1
-DHAVE_FFTW3=1 -DHAVE_GLPK_H=1 -DHAVE_GLPK=1 -DHAVE_CURL_CURL_H=1
-DHAVE_CURL=1 -DHAVE_IEEE754_DATA_FORMAT=1 -DF77_FUNC(name,NAME)=name ## _
-DF77_FUNC_(name,NAME)=name ## __ -DHAVE_BLAS=1
-DHAVE_SUITESPARSE_UMFPACK_H=1 -DHAVE_UMFPACK=1 -DUMFPACK_SEPARATE_SPLIT=1
-DHAVE_SUITESPARSE_COLAMD_H=1 -DHAVE_COLAMD=1 -DHAVE_SUITESPARSE_CCOLAMD_H=1
-DHAVE_CCOLAMD=1 -DHAVE_SUITESPARSE_CHOLMOD_H=1 -DHAVE_CHOLMOD=1
-DHAVE_SUITESPARSE_CS_H=1 -DHAVE_CXSPARSE=1 -Dmode_t=int -Dpid_t=int
-Duid_t=int -Dgid_t=int -DHAVE_DEV_T=1 -DHAVE_INO_T=1 -DHAVE_LONG_LONG_INT=1
-DHAVE_UNSIGNED_LONG_LONG_INT=1 -DHAVE_SIG_ATOMIC_T=1 -DSIZEOF_SHORT=2
-DSIZEOF_INT=4 -DSIZEOF_LONG=4 -DSIZEOF_LONG_LONG=8 -DHAVE_ALLOCA=1
-DNPOS=std::string::npos -DHAVE_PLACEMENT_DELETE=1 -DSTDC_HEADERS=1
-DHAVE_ASSERT_H=1 -DHAVE_DIRECT_H=1 -DHAVE_FCNTL_H=1 -DHAVE_FLOAT_H=1
-DHAVE_INTTYPES_H=1 -DHAVE_LIMITS_H=1 -DHAVE_LOCALE_H=1 -DHAVE_MEMORY_H=1
-DHAVE_STDINT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_SYS_STAT_H=1
-DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_UTIME_H=1 -DHAVE_UNISTD_H=1
-DHAVE_VARARGS_H=1 -DHAVE_SSTREAM=1 -DHAVE_GLOB_H=1 -DHAVE_FNMATCH_H=1
-DHAVE_CONIO_H=1 -DHAVE_ATEXIT=1 -DHAVE_CHMOD=1 -DHAVE_DUP2=1
-DHAVE_EXECVP=1 -DHAVE_GETCWD=1 -DHAVE_GETPID=1 -DHAVE__KBHIT=1
-DHAVE_MEMMOVE=1 -DHAVE_MKDIR=1 -DHAVE_PUTENV=1 -DHAVE_RAISE=1
-DHAVE_RENAME=1 -DHAVE_RMDIR=1 -DHAVE_SETLOCALE=1 -DHAVE_SETVBUF=1
-DHAVE_STAT=1 -DHAVE_STRDUP=1 -DHAVE_STRERROR=1 -DHAVE_STRICMP=1
-DHAVE_STRNICMP=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1 -DHAVE_UNLINK=1
-DHAVE_UTIME=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1 -DHAVE_VSNPRINTF=1
-DHAVE__CHMOD=1 -DHAVE__SNPRINTF=1 -DHAVE__UTIME32=1
-DOCTAVE_HAVE_BROKEN_STRPTIME=1 -D_USE_MATH_DEFINES=1
-DHAVE_LOADLIBRARY_API=1 -DENABLE_DYNAMIC_LINKING=1 -DHAVE__FINITE=1
-DHAVE__ISNAN=1 -DHAVE__COPYSIGN=1 -DHAVE_DECL_SIGNBIT=0
-DHAVE_STRUCT_STAT_ST_RDEV=1 -DHAVE_DECL_TZNAME=1 -DHAVE_TZNAME=1
-DCLOSEDIR_VOID=1 -DMKDIR_TAKES_ONE_ARG=1 -DUSE_READLINE=1 -DRETSIGTYPE=void
-DHAVE_DECL_SYS_SIGLIST=0 -DMUST_REINSTALL_SIGHANDLERS=1
-DRETSIGTYPE_IS_VOID=1 -DGNUPLOT_BINARY="pgnuplot"


User-preferences (please do not edit this section):

  EDITOR = C:\Program Files (x86)\Octave\tools\wscite\SciTE.exe
  EXEC_PATH = C:\Program Files (x86)\Octave\msys\bin;C:\Program Files
(x86)\Octave\libexec\octave\3.0.3\site\exec\i686-pc-msdosmsvc;C:\Program
Files
(x86)\Octave\libexec\octave\api-v32\site\exec\i686-pc-msdosmsvc;C:\Program
Files (x86)\Octave\libexec\octave\site\exec\i686-pc-msdosmsvc;C:\Program
Files (x86)\Octave\libexec\octave\3.0.3\exec\i686-pc-msdosmsvc;C:\Program
Files (x86)\Octave\bin;C:\Program Files
(x86)\Octave;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\PROGRA~1\CA\SHARED~1\SCANEN~1;C:\Program
Files\CA\eTrust Antivirus
  IMAGE_PATH = .;C:\Program Files (x86)\Octave\share\octave\3.0.3\imagelib
  PAGER = less
  PS1 = \s:\#>
  PS2 = >
  PS4 = +
  beep_on_error = 0
  completion_append_char =
  crash_dumps_octave_core = 1
  echo_executing_commands = 0
  fixed_point_format = 0
  gnuplot_binary = pgnuplot
  gnuplot_command_end =

  gnuplot_command_plot = pl
  gnuplot_command_replot = rep
  gnuplot_command_splot = sp
  gnuplot_command_title = t
  gnuplot_command_using = u
  gnuplot_command_with = w
  history_file = C:\Users\sas\.octave_hist
  history_size = 1024
  ignore_function_time_stamp = system
  info_file = C:\Program Files (x86)\Octave\share\info\octave.info
  info_program = info
  makeinfo_program = makeinfo
  max_recursion_depth = 256
  output_max_field_width = 5
  output_precision = 5
  page_output_immediately = 0
  page_screen_output = 1
  print_answer_id_name = 1
  print_empty_dimensions = 1
  save_precision = 16
  saving_history = 1
  sighup_dumps_octave_core = 1
  sigterm_dumps_octave_core = 1
  silent_functions = 0
  split_long_rows = 1
  string_fill_char =
  struct_levels_to_print = 2
  suppress_verbose_help_message = 0

 
 
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Bug-octave mailing list
Bug-octave@octave.org
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