image,Image-method          package:EBImage          R Documentation

_G_e_n_e_r_i_c _m_e_t_h_o_d_s _f_o_r _o_b_j_e_c_t_s _o_f _c_l_a_s_s _I_m_a_g_e

_D_e_s_c_r_i_p_t_i_o_n:

     'Image' supports all (or almost all) operations that are  defined
     for 'array'. However, the default behavior of some  generics was
     redefined in the package to better suit the class. Those are:

_G_e_n_e_r_i_c _m_e_t_h_o_d_s:



     '_s_h_o_w(_o_b_j_e_c_t)'  Prints a summary of image and properties (as
          described in 'Accessor methods' section). Prints also an
          excerpt of data keeping it to the minimum just to have a
          visual  control over the atomic data type. Use'imageData(x)'
          to print or assign the full dataset. If image was put through
          the object detection algorithm a summary of detected objects
          will be printed instead of data. 

     '_a_s._a_r_r_a_y(_x)' Removed to avoid incompatibilities with R < 2.5. 
          Use 'imageData' instead. 

     '_a_s._m_a_t_r_i_x(_x, ...)' Removed to avoid incompatibilities with  R <
          2.5. Use 'as.matrix(imageData(x))' instead. 

     '_h_i_s_t(_x, ...)' A histogramme method.  

     '_m_e_d_i_a_n(_x, _n_a._r_m=_F_A_L_S_E)' 'stats:median' redefinition  for images
          (bug workaround: without it 'median' takes forever to execute
          without no apparent reason)

     '_i_m_a_g_e(_x, ...)' Draws image data using 'graphics::image'  keeping
          image aspect ratio. 

     '[' Redefined versions (multiple signatures) of the 'array'
          subsetting operator. These return objects of class  'Image'
          without dropping dimensions. 

     '_A_r_i_t_h' Redefined arithmetic operators acting on any  combination
          of 'Image' with another 'Image' or 'array' will return an
          object of class 'Image'. 

     '_a_s._I_m_a_g_e)(_x, ...)' S4 method for the signature 'x=array'. Is
          equivalent to 'Image(x)' when 'x' is 'array'.

     Other important methods that directly applicable due to
     inheritance from the  'array' class, just to stress that they can
     and should be used:



     '_d_i_m(_x)' _a_n_d '_d_i_m(_x) <- _v_a_l_u_e'  Gets and sets image dimensions. 

     '_f_f_t(_z, _i_n_v_e_r_s_e = _F_A_L_S_E)' Performs the Fast Fourier Transformation
          on an Image. 

     '_s_q_r_t(_x)' _e_t_c. Miscellaneous mathematical functions. 

_A_u_t_h_o_r(_s):

     Oleg Sklyar, osklyar@ebi.ac.uk, 2006-2007

_S_e_e _A_l_s_o:

     ' Image, IndexedImage '

