Improve the documentation.

CMakeLists.txt

@@ -10,7 +10,7 @@
 if(" ${CMAKE_SOURCE_DIR}" STREQUAL " ${CMAKE_BINARY_DIR}")
   message(FATAL_ERROR "
 FATAL: In-source builds are not allowed.
-       You should create separate directory for build files.
+       You should create a separate directory for build files.
 ")
 endif()
 
@@ -189,7 +189,7 @@ OCV_OPTION(BUILD_PACKAGE            "Enables 'make package_source' command"
 OCV_OPTION(BUILD_PERF_TESTS         "Build performance tests"                     ON  IF (NOT IOS) )
 OCV_OPTION(BUILD_TESTS              "Build accuracy & regression tests"           ON  IF (NOT IOS) )
 OCV_OPTION(BUILD_WITH_DEBUG_INFO    "Include debug info into debug libs (not MSCV only)" ON )
-OCV_OPTION(BUILD_WITH_STATIC_CRT    "Enables use of staticaly linked CRT for staticaly linked OpenCV" ON IF MSVC )
+OCV_OPTION(BUILD_WITH_STATIC_CRT    "Enables use of statically linked CRT for staticaly linked OpenCV" ON IF MSVC )
 OCV_OPTION(BUILD_FAT_JAVA_LIB       "Create fat java wrapper containing the whole OpenCV library" ON IF NOT BUILD_SHARED_LIBS AND CMAKE_COMPILER_IS_GNUCXX )
 OCV_OPTION(BUILD_ANDROID_SERVICE    "Build OpenCV Manager for Google Play" OFF IF ANDROID AND ANDROID_SOURCE_TREE )
 OCV_OPTION(BUILD_ANDROID_PACKAGE    "Build platform-specific package for Google Play" OFF IF ANDROID )

cmake/OpenCVUtils.cmake

@@ -5,8 +5,8 @@ if(UNIX)
   find_package(PkgConfig)
 endif()
 
-# Search packages for host system instead of packages for target system
-# in case of cross compilation thess macro should be defined by toolchain file
+# Search packages for the host system instead of packages for target system
+# in case of cross compilation these macros should be defined by the toolchain file
 if(NOT COMMAND find_host_package)
   macro(find_host_package)
     find_package(${ARGN})
@@ -82,7 +82,7 @@ macro(ocv_check_environment_variables)
   endforeach()
 endmacro()
 
-# adds include directories in such way that directories from the OpenCV source tree go first
+# adds include directories in such a way that directories from the OpenCV source tree go first
 function(ocv_include_directories)
   set(__add_before "")
   foreach(dir ${ARGN})
@@ -337,7 +337,7 @@ macro(ocv_check_modules define)
 endmacro()
 
 
-# Macros that checks if module have been installed.
+# Macro that checks if module has been installed.
 # After it adds module to build and define
 # constants passed as second arg
 macro(CHECK_MODULE module_name define)
@@ -526,7 +526,7 @@ macro(ocv_list_add_suffix LST SUFFIX)
 endmacro()
 
 
-# gets and removes the first element from list
+# gets and removes the first element from the list
 macro(ocv_list_pop_front LST VAR)
   if(${LST})
     list(GET ${LST} 0 ${VAR})

cmake/OpenCVVersion.cmake

@@ -14,6 +14,6 @@ endif()
 set(OPENCV_SOVERSION "${OPENCV_VERSION_MAJOR}.${OPENCV_VERSION_MINOR}")
 set(OPENCV_LIBVERSION "${OPENCV_VERSION_MAJOR}.${OPENCV_VERSION_MINOR}.${OPENCV_VERSION_PATCH}")
 
-# create a dependency on version file
-# we never use output of the following command but cmake will rerun automatically if the version file changes
+# create a dependency on the version file
+# we never use the output of the following command but cmake will rerun automatically if the version file changes
 configure_file("${OPENCV_VERSION_FILE}" "${CMAKE_BINARY_DIR}/junk/version.junk" COPYONLY)

modules/core/doc/utility_and_system_functions_and_macros.rst

@@ -31,7 +31,7 @@ Aligns a buffer size to the specified number of bytes.
 
     :param n: Alignment size that must be a power of two.
 
-The function returns the minimum number that is greater or equal to ``sz`` and is divisible by ``n`` :
+The function returns the minimum number that is greater than or equal to ``sz`` and is divisible by ``n`` :
 
 .. math::
 
@@ -363,7 +363,7 @@ Always returns 0 if called outside of parallel region.
 
 .. ocv:function:: int getThreadNum()
 
-The exact meaning of return value depends on the threading framework used by OpenCV library:
+The exact meaning of the return value depends on the threading framework used by OpenCV library:
 
     * **TBB** – Unsupported with current 4.1 TBB release. May be will be supported in future.
     * **OpenMP** – The thread number, within the current team, of the calling thread.
@@ -450,7 +450,7 @@ This operation is used in the simplest or most complex image processing function
 setNumThreads
 -----------------
 OpenCV will try to set the number of threads for the next parallel region.
-If ``threads == 0``, OpenCV will disable threading optimizations and run all it's
+If ``threads == 0``, OpenCV will disable threading optimizations and run all its
 functions sequentially. Passing ``threads < 0`` will reset threads number to system default.
 This function must be called outside of parallel region.
 
@@ -458,14 +458,14 @@ This function must be called outside of parallel region.
 
     :param nthreads: Number of threads used by OpenCV.
 
-OpenCV will try to run it's functions with specified threads number, but
+OpenCV will try to run its functions with specified threads number, but
 some behaviour differs from framework:
 
     * **TBB** – User-defined parallel constructions will run with the same threads number,
-      if another does not specified. If late on user creates own scheduler, OpenCV will be use it.
+      if another is not specified. If late on user creates his own scheduler, OpenCV will be use it.
     * **OpenMP** – No special defined behaviour.
     * **Concurrency** – If ``threads == 1``, OpenCV will disable threading optimizations
-      and run it's functions sequentially.
+      and run its functions sequentially.
     * **GCD** – Supports only values <= 0.
     * **C=** – No special defined behaviour.