/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2020, Sebastian Fricke * * bayer_format.cpp - BayerFormat class tests */ #include #include #include "libcamera/internal/bayer_format.h" #include "test.h" using namespace std; using namespace libcamera; class BayerFormatTest : public Test { protected: int run() { /* An empty Bayer format has to be invalid. */ BayerFormat bayerFmt; if (bayerFmt.isValid()) { cerr << "An empty BayerFormat has to be invalid." << endl; return TestFail; } /* A correct Bayer format has to be valid. */ bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); if (!bayerFmt.isValid()) { cerr << "A correct BayerFormat has to be valid." << endl; return TestFail; } /* * Two bayer formats created with the same order and bit depth * have to be equal. */ bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); BayerFormat bayerFmtExpect = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); if (bayerFmt != bayerFmtExpect) { cerr << "Comparison of identical formats failed." << endl; return TestFail; } /* * Two Bayer formats created with the same order but with a * different bitDepth are not equal. */ bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); bayerFmtExpect = BayerFormat(BayerFormat::BGGR, 12, BayerFormat::Packing::None); if (bayerFmt == bayerFmtExpect) { cerr << "Comparison of different formats failed." << endl; return TestFail; } /* * Create a Bayer format with a V4L2PixelFormat and check if we * get the same format after converting back to the V4L2 Format. */ V4L2PixelFormat v4l2FmtExpect = V4L2PixelFormat( V4L2_PIX_FMT_SBGGR8); bayerFmt = BayerFormat::fromV4L2PixelFormat(v4l2FmtExpect); V4L2PixelFormat v4l2Fmt = bayerFmt.toV4L2PixelFormat(); if (v4l2Fmt != v4l2FmtExpect) { cerr << "Expected: '" << v4l2FmtExpect.toString() << "' got: '" << v4l2Fmt.toString() << "'" << endl; return TestFail; } /* * Use an empty Bayer format and verify that no matching * V4L2PixelFormat is found. */ v4l2FmtExpect = V4L2PixelFormat(); bayerFmt = BayerFormat(); v4l2Fmt = bayerFmt.toV4L2PixelFormat(); if (v4l2Fmt != v4l2FmtExpect) { cerr << "Expected: empty V4L2PixelFormat got: '" << v4l2Fmt.toString() << "'" << endl; return TestFail; } /* * Check if we get the expected Bayer format BGGR8 * when we convert the V4L2PixelFormat (V4L2_PIX_FMT_SBGGR8) * to a Bayer format. */ bayerFmtExpect = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); v4l2Fmt = V4L2PixelFormat(V4L2_PIX_FMT_SBGGR8); bayerFmt = BayerFormat::fromV4L2PixelFormat(v4l2Fmt); if (bayerFmt != bayerFmtExpect) { cerr << "Expected BayerFormat '" << bayerFmtExpect.toString() << "', got: '" << bayerFmt.toString() << "'" << endl; return TestFail; } /* * Confirm that a V4L2PixelFormat that is not found in * the conversion table, doesn't yield a Bayer format. */ V4L2PixelFormat v4l2FmtUnknown = V4L2PixelFormat( V4L2_PIX_FMT_BGRA444); bayerFmt = BayerFormat::fromV4L2PixelFormat(v4l2FmtUnknown); if (bayerFmt.isValid()) { cerr << "Expected empty BayerFormat got: '" << bayerFmt.toString() << "'" << endl; return TestFail; } /* * Test if a valid Bayer format can be converted to a * string representation. */ bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); if (bayerFmt.toString() != "BGGR-8") { cerr << "String representation != 'BGGR-8' (got: '" << bayerFmt.toString() << "' ) " << endl; return TestFail; } /* * Determine if an empty Bayer format results in no * string representation. */ bayerFmt = BayerFormat(); if (bayerFmt.toString() != "INVALID") { cerr << "String representation != 'INVALID' (got: '" << bayerFmt.toString() << "' ) " << endl; return TestFail; } /* * Perform a horizontal Flip and make sure that the * order is adjusted accordingly. */ bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); bayerFmtExpect = BayerFormat(BayerFormat::GBRG, 8, BayerFormat::Packing::None); BayerFormat hFlipFmt = bayerFmt.transform(Transform::HFlip); if (hFlipFmt != bayerFmtExpect) { cerr << "Horizontal flip of 'BGGR-8' should result in '" << bayerFmtExpect.toString() << "', got: '" << hFlipFmt.toString() << "'" << endl; return TestFail; } /* * Perform a vertical Flip and make sure that * the order is adjusted accordingly. */ bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); bayerFmtExpect = BayerFormat(BayerFormat::GRBG, 8, BayerFormat::Packing::None); BayerFormat vFlipFmt = bayerFmt.transform(Transform::VFlip); if (vFlipFmt != bayerFmtExpect) { cerr << "Vertical flip of 'BGGR-8' should result in '" << bayerFmtExpect.toString() << "', got: '" << vFlipFmt.toString() << "'" << endl; return TestFail; } /* * Perform a transposition on a pixel order with both green * pixels on the bottom left to top right diagonal and make * sure, that it doesn't change. */ bayerFmt = BayerFormat(BayerFormat::BGGR, 8, BayerFormat::Packing::None); BayerFormat transposeFmt = bayerFmt.transform( Transform::Transpose); if (transposeFmt != bayerFmt) { cerr << "Transpose with both green pixels on the " << "antidiagonal should not change the order " << "(got '" << transposeFmt.toString() << "')" << endl; return TestFail; } /* * Perform a transposition on an pixel order with red and blue * on the bottom left to top right diagonal and make sure * that their positions are switched. */ bayerFmt = BayerFormat(BayerFormat::GBRG, 8, BayerFormat::Packing::None); bayerFmtExpect = BayerFormat(BayerFormat::GRBG, 8, BayerFormat::Packing::None); transposeFmt = bayerFmt.transform(Transform::Transpose); if (transposeFmt != bayerFmtExpect) { cerr << "Transpose with the red & blue pixels on the " << "antidiagonal should switch their position " << "(got '" << transposeFmt.toString() << "')" << endl; return TestFail; } return TestPass; } }; TEST_REGISTER(BayerFormatTest) ' href='#n101'>101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149

# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (C) 2019, Raspberry Pi (Trading) Limited
#
# ctt_tools.py - camera tuning tool miscellaneous

import time
import re
import binascii
import os
import cv2
import numpy as np
import imutils
import sys
import matplotlib.pyplot as plt
from sklearn import cluster as cluster
from sklearn.neighbors.nearest_centroid import NearestCentroid as get_centroids

"""
This file contains some useful tools, the details of which aren't important to
understanding of the code. They ar collated here to attempt to improve code
readability in the main files.
"""


"""
obtain config values, unless it doesnt exist, in which case pick default
Furthermore, it can check if the input is the correct type
"""
def get_config(dictt, key, default, ttype):
    try:
        val = dictt[key]
        if ttype == 'string':
            val = str(val)
        elif ttype == 'num':
            if 'int' not in str(type(val)):
                if 'float' not in str(type(val)):
                    raise ValueError
        elif ttype == 'dict':
            if not isinstance(val, dict):
                raise ValueError
        elif ttype == 'list':
            if not isinstance(val, list):
                raise ValueError
        elif ttype == 'bool':
            ttype = int(bool(ttype))
        else:
            val = dictt[key]
    except (KeyError, ValueError):
        val = default
    return val


"""
argument parser
"""
def parse_input():
    arguments = sys.argv[1:]
    if len(arguments) % 2 != 0:
        raise ArgError('\n\nERROR! Enter value for each arguent passed.')
    params = arguments[0::2]
    vals = arguments[1::2]
    args_dict = dict(zip(params, vals))
    json_output = get_config(args_dict, '-o', None, 'string')
    directory = get_config(args_dict, '-i', None, 'string')
    config = get_config(args_dict, '-c', None, 'string')
    log_path = get_config(args_dict, '-l', None, 'string')
    if directory is None:
        raise ArgError('\n\nERROR! No input directory given.')
    if json_output is None:
        raise ArgError('\n\nERROR! No output json given.')
    return json_output, directory, config, log_path


"""
custom arg and macbeth error class
"""
class ArgError(Exception):
    pass
class MacbethError(Exception):
    pass


"""
correlation function to quantify match
"""
def correlate(im1, im2):
    f1 = im1.flatten()
    f2 = im2.flatten()
    cor = np.corrcoef(f1, f2)
    return cor[0][1]


"""
get list of files from directory
"""
def get_photos(directory='photos'):
    filename_list = []
    for filename in os.listdir(directory):
        if 'jp' in filename or '.dng' in filename:
            filename_list.append(filename)
    return filename_list


"""
display image for debugging... read at your own risk...
"""
def represent(img, name='image'):
    # if type(img) == tuple or type(img) == list:
    #     for i in range(len(img)):
    #         name = 'image {}'.format(i)
    #         cv2.imshow(name, img[i])
    # else:
    #     cv2.imshow(name, img)
    # cv2.waitKey(0)
    # cv2.destroyAllWindows()
    # return 0
    """
    code above displays using opencv, but this doesn't catch users pressing 'x'
    with their mouse to close the window....  therefore matplotlib is used....
    (thanks a lot opencv)
    """
    grid = plt.GridSpec(22, 1)
    plt.subplot(grid[:19, 0])
    plt.imshow(img, cmap='gray')
    plt.axis('off')
    plt.subplot(grid[21, 0])
    plt.title('press \'q\' to continue')
    plt.axis('off')
    plt.show()

    # f = plt.figure()
    # ax = f.add_subplot(211)
    # ax2 = f.add_subplot(122)
    # ax.imshow(img, cmap='gray')
    # ax.axis('off')
    # ax2.set_figheight(2)
    # ax2.title('press \'q\' to continue')
    # ax2.axis('off')
    # plt.show()


"""
reshape image to fixed width without distorting
returns image and scale factor
"""
def reshape(img, width):
    factor = width/img.shape[0]
    return cv2.resize(img, None, fx=factor, fy=factor), factor