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PENERAPAN METODE CONTRAST STRETCHING UNTUK PENINGKATAN KUALITAS CITRA BIDANG BIOMEDIS Hotmantri Simbolon
Jurnal Mantik Penusa Vol. 18 No. 2 (2015): Jurnal Mantik Penusa
Publisher : Lembaga Penelitian dan Pengabdian (LPPM) STMIK Pelita Nusantara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (527.491 KB)

Abstract

Abstrak Suatu citra yang mempunyai kontras rendah dapat dihasilkan dari sumber citra dengan iluminasi rendah, atau karena adanya kesalahan setting pada saat pengambilan citra berlangsung, sehingga menghasilkan dynamic range citra tersebut. Dalam penelitian ini dijelaskan tentang metode contrast stretching untuk memperbaiki kualitas citra. Ide dasar dari adanya contrast stretching adalah meningkatkan dynamic range skala keabuan citra (gray scale). Pada tesis ini, dalam melakukan suatu pemrosesan contrast stretching pada sebuah citra digital maka ditentukan terlebih dahulu nilai – nilai pixelnya yakni nilai c1,c2,d1,d2 agar dapat membentuk sebuah fungsi transformasi contrast stretching. Bentuk fungsi tersebut dapat mempengaruhi hasil dari citra setelah diproses. Histogram citra dapat digunakan untuk meningkatkan kecerahan sebuah citra sehingga dapat membantu untuk perbaikan citra selanjutnya.  Kata Kunci : Pengolahan Citra, Contrast Stretching, Citra Digital, Histogram Citra
Penguatan Ikatan Pernikahan melalui Program “Pernikahan yang Dilahirkan Kembali” di GPPS Agape Bandung Darmawan Darmawan; Fransisca Putri Cyndivania; Veronicha Nussa; Andronius Wedo; Hotmantri Simbolon
ARDHI : Jurnal Pengabdian Dalam Negri Vol. 4 No. 2 (2026): April: ARDHI : Jurnal Pengabdian Dalam Negri
Publisher : Asosiasi Riset Pendidikan Agama dan Filsafat Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/ardhi.v4i2.1968

Abstract

A faith-based marriage strengthening program is essential for building family resilience in urban congregations facing high divorce rates and declining marital quality. This community service activity aimed to revitalize the marital bonds of 22 couples in the Pria Sejati Bandung community and GPPS Agape Bandung congregation through the "Reborn Marriage" program. Using a participatory action research approach, a team of 12 facilitators implemented three main stages: initial coordination to identify needs and plan together with the community; an intensive one-day intervention consisting of teachings on grace, agape love, and divine purpose of marriage, along with testimony sharing, footwashing ritual, and gift giving; and a marriage commitment renewal ceremony. The results showed 100% attendance rate of all registered couples, active participation in every coaching session, and qualitative findings from focus group discussions including renewed spiritual intimacy, mutual forgiveness between spouses, and alignment of marital visions based on divine values. A total of 86% of couples expressed willingness to participate in regular follow-up mentoring, and local leaders emerged among participants who are ready to facilitate small groups after the program. Discussions confirmed that combining biblical teachings on agape love with experiential symbolic rituals can holistically transform marital relationships. This community-based intervention proves replicable in other local communities and churches in urban settings, especially those seeking to strengthen family resilience through integrated pastoral care and participatory action.